122543045 has 4 divisors (see below), whose sum is σ = 147051660. Its totient is φ = 98034432.

The previous prime is 122542967. The next prime is 122543063. The reversal of 122543045 is 540345221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73290721 + 49252324 = 8561^2 + 7018^2 .

It is a cyclic number.

It is not a de Polignac number, because 122543045 - 2¹⁴ = 122526661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12254300 + ... + 12254309.

It is an arithmetic number, because the mean of its divisors is an integer number (36762915).

Almost surely, 2^122543045 is an apocalyptic number.

It is an amenable number.

122543045 is a deficient number, since it is larger than the sum of its proper divisors (24508615).

122543045 is an equidigital number, since it uses as much as digits as its factorization.

122543045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24508614.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 122543045 is about 11069.9162146784. The cubic root of 122543045 is about 496.7023589402.

Adding to 122543045 its reverse (540345221), we get a palindrome (662888266).

The spelling of 122543045 in words is "one hundred twenty-two million, five hundred forty-three thousand, forty-five".