23155100 has 18 divisors (see below), whose sum is σ = 50246784. Its totient is φ = 9262000.

The previous prime is 23155063. The next prime is 23155123. The reversal of 23155100 is 155132.

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 5 ways as a sum of consecutive naturals, for example, 115676 + ... + 115875.

It is an arithmetic number, because the mean of its divisors is an integer number (2791488).

Almost surely, 2^23155100 is an apocalyptic number.

23155100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23155100 is an abundant number, since it is smaller than the sum of its proper divisors (27091684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23155100 is a wasteful number, since it uses less digits than its factorization.

23155100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231565 (or 231558 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 23155100 is about 4811.9746466498. The cubic root of 23155100 is about 285.0245182559.

The spelling of 23155100 in words is "twenty-three million, one hundred fifty-five thousand, one hundred".