23155874 has 16 divisors (see below), whose sum is σ = 39879168. Its totient is φ = 9878112.

The previous prime is 23155861. The next prime is 23155879. The reversal of 23155874 is 47855132.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (23155879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587 + ... + 6830.

It is an arithmetic number, because the mean of its divisors is an integer number (2492448).

Almost surely, 2^23155874 is an apocalyptic number.

23155874 is a deficient number, since it is larger than the sum of its proper divisors (16723294).

23155874 is a wasteful number, since it uses less digits than its factorization.

23155874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7649.

The product of its digits is 33600, while the sum is 35.

The square root of 23155874 is about 4812.0550703416. The cubic root of 23155874 is about 285.0276940360.

The spelling of 23155874 in words is "twenty-three million, one hundred fifty-five thousand, eight hundred seventy-four".