255145923 has 32 divisors (see below), whose sum is σ = 397440000. Its totient is φ = 161460288.

The previous prime is 255145909. The next prime is 255145931. The reversal of 255145923 is 329541552.

It is a happy number.

255145923 is a `hidden beast` number, since 2 + 55 + 14 + 592 + 3 = 666.

It is not a de Polignac number, because 255145923 - 2⁴ = 255145907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255140923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83578 + ... + 86576.

It is an arithmetic number, because the mean of its divisors is an integer number (12420000).

Almost surely, 2^255145923 is an apocalyptic number.

255145923 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

255145923 is a deficient number, since it is larger than the sum of its proper divisors (142294077).

255145923 is a wasteful number, since it uses less digits than its factorization.

255145923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168 (or 3162 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 255145923 is about 15973.2877955667. The cubic root of 255145923 is about 634.2535076389.

The spelling of 255145923 in words is "two hundred fifty-five million, one hundred forty-five thousand, nine hundred twenty-three".