23151165 has 16 divisors (see below), whose sum is σ = 37138176. Its totient is φ = 12315200.

The previous prime is 23151109. The next prime is 23151181. The reversal of 23151165 is 56115132.

It is not a de Polignac number, because 23151165 - 2¹⁴ = 23134781 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4675 + ... + 8255.

It is an arithmetic number, because the mean of its divisors is an integer number (2321136).

Almost surely, 2^23151165 is an apocalyptic number.

It is an amenable number.

23151165 is a deficient number, since it is larger than the sum of its proper divisors (13987011).

23151165 is a wasteful number, since it uses less digits than its factorization.

23151165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its digits is 900, while the sum is 24.

The square root of 23151165 is about 4811.5657534736. The cubic root of 23151165 is about 285.0083715608.

Adding to 23151165 its reverse (56115132), we get a palindrome (79266297).

The spelling of 23151165 in words is "twenty-three million, one hundred fifty-one thousand, one hundred sixty-five".