23115128 has 16 divisors (see below), whose sum is σ = 43464480. Its totient is φ = 11524608.

The previous prime is 23115109. The next prime is 23115133. The reversal of 23115128 is 82151132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (2716530).

Almost surely, 2^23115128 is an apocalyptic number.

It is an amenable number.

23115128 is a deficient number, since it is larger than the sum of its proper divisors (20349352).

23115128 is a wasteful number, since it uses less digits than its factorization.

23115128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246 (or 8242 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 23115128 is about 4807.8194641646. The cubic root of 23115128 is about 284.8604138449.

The spelling of 23115128 in words is "twenty-three million, one hundred fifteen thousand, one hundred twenty-eight".