23251128 has 32 divisors (see below), whose sum is σ = 58248960. Its totient is φ = 7734240.

The previous prime is 23251097. The next prime is 23251159. The reversal of 23251128 is 82115232.

It is an interprime number because it is at equal distance from previous prime (23251097) and next prime (23251159).

It is a super-2 number, since 2×23251128² = 1081229906544768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 23251098 and 23251107.

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 7 ways as a sum of consecutive naturals, for example, 18273 + ... + 19503.

It is an arithmetic number, because the mean of its divisors is an integer number (1820280).

Almost surely, 2^23251128 is an apocalyptic number.

It is an amenable number.

23251128 is an abundant number, since it is smaller than the sum of its proper divisors (34997832).

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

23251128 is a wasteful number, since it uses less digits than its factorization.

23251128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027 (or 2023 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 23251128 is about 4821.9423472290. The cubic root of 23251128 is about 285.4179893120.

It can be divided in two parts, 232 and 51128, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 23251128 in words is "twenty-three million, two hundred fifty-one thousand, one hundred twenty-eight".