23275165 has 4 divisors (see below), whose sum is σ = 27930204. Its totient is φ = 18620128.

The previous prime is 23275151. The next prime is 23275177. The reversal of 23275165 is 56157232.

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 7546009 + 15729156 = 2747^2 + 3966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23275165 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2327512 + ... + 2327521.

It is an arithmetic number, because the mean of its divisors is an integer number (6982551).

Almost surely, 2^23275165 is an apocalyptic number.

It is an amenable number.

23275165 is a deficient number, since it is larger than the sum of its proper divisors (4655039).

23275165 is an equidigital number, since it uses as much as digits as its factorization.

23275165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655038.

The product of its digits is 12600, while the sum is 31.

The square root of 23275165 is about 4824.4341637129. The cubic root of 23275165 is about 285.5163104114.

The spelling of 23275165 in words is "twenty-three million, two hundred seventy-five thousand, one hundred sixty-five".