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122235401 = 977125113
BaseRepresentation
bin1110100100100…
…10101000001001
322112000012110002
413102102220021
5222243013101
620043532345
73012661301
oct722225011
9275005402
10122235401
1162aa92a2
1234b2a0b5
131c42a552
141233c601
15aae7d6b
hex7492a09

122235401 has 4 divisors (see below), whose sum is σ = 122361492. Its totient is φ = 122109312.

The previous prime is 122235397. The next prime is 122235413. The reversal of 122235401 is 104532221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104532221 = 148370487.

It can be written as a sum of positive squares in 2 ways, for example, as 54007801 + 68227600 = 7349^2 + 8260^2 .

It is a cyclic number.

It is not a de Polignac number, because 122235401 - 22 = 122235397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122235431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61580 + ... + 63533.

It is an arithmetic number, because the mean of its divisors is an integer number (30590373).

Almost surely, 2122235401 is an apocalyptic number.

It is an amenable number.

122235401 is a deficient number, since it is larger than the sum of its proper divisors (126091).

122235401 is an equidigital number, since it uses as much as digits as its factorization.

122235401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126090.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 122235401 is about 11056.0119844363. The cubic root of 122235401 is about 496.2863539534.

Adding to 122235401 its reverse (104532221), we get a palindrome (226767622).

The spelling of 122235401 in words is "one hundred twenty-two million, two hundred thirty-five thousand, four hundred one".

Divisors: 1 977 125113 122235401