23112915 has 16 divisors (see below), whose sum is σ = 42263808. Its totient is φ = 10565856.

The previous prime is 23112883. The next prime is 23112917. The reversal of 23112915 is 51921132.

It is not a de Polignac number, because 23112915 - 2⁵ = 23112883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23112917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109957 + ... + 110166.

It is an arithmetic number, because the mean of its divisors is an integer number (2641488).

Almost surely, 2^23112915 is an apocalyptic number.

23112915 is a deficient number, since it is larger than the sum of its proper divisors (19150893).

23112915 is a wasteful number, since it uses less digits than its factorization.

23112915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220138.

The product of its digits is 540, while the sum is 24.

The square root of 23112915 is about 4807.5893127429. The cubic root of 23112915 is about 284.8513228834.

The spelling of 23112915 in words is "twenty-three million, one hundred twelve thousand, nine hundred fifteen".