23255138 has 8 divisors (see below), whose sum is σ = 34914780. Its totient is φ = 11616880.

The previous prime is 23255123. The next prime is 23255153. The reversal of 23255138 is 83155232.

It is an interprime number because it is at equal distance from previous prime (23255123) and next prime (23255153).

It can be written as a sum of positive squares in 2 ways, for example, as 18515809 + 4739329 = 4303^2 + 2177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23255138.

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 3 ways as a sum of consecutive naturals, for example, 2273 + ... + 7188.

Almost surely, 2^23255138 is an apocalyptic number.

23255138 is a deficient number, since it is larger than the sum of its proper divisors (11659642).

23255138 is a wasteful number, since it uses less digits than its factorization.

23255138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10692.

The product of its digits is 7200, while the sum is 29.

The square root of 23255138 is about 4822.3581368455. The cubic root of 23255138 is about 285.4343965496.

The spelling of 23255138 in words is "twenty-three million, two hundred fifty-five thousand, one hundred thirty-eight".