104202145 has 4 divisors (see below), whose sum is σ = 125042580. Its totient is φ = 83361712.

The previous prime is 104202143. The next prime is 104202169. The reversal of 104202145 is 541202401.

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 24760576 + 79441569 = 4976^2 + 8913^2 .

It is a cyclic number.

It is not a de Polignac number, because 104202145 - 2¹ = 104202143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104202143) by changing a digit.

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, 10420210 + ... + 10420219.

It is an arithmetic number, because the mean of its divisors is an integer number (31260645).

Almost surely, 2^104202145 is an apocalyptic number.

It is an amenable number.

104202145 is a deficient number, since it is larger than the sum of its proper divisors (20840435).

104202145 is an equidigital number, since it uses as much as digits as its factorization.

104202145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20840434.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 104202145 is about 10207.9451898999. The cubic root of 104202145 is about 470.5714266009.

Adding to 104202145 its reverse (541202401), we get a palindrome (645404546).

The spelling of 104202145 in words is "one hundred four million, two hundred two thousand, one hundred forty-five".