258118172 has 24 divisors (see below), whose sum is σ = 496808256. Its totient is φ = 116595648.

The previous prime is 258118163. The next prime is 258118177. The reversal of 258118172 is 271811852.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258118177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50363 + ... + 55250.

It is an arithmetic number, because the mean of its divisors is an integer number (20700344).

Almost surely, 2^258118172 is an apocalyptic number.

It is an amenable number.

258118172 is a deficient number, since it is larger than the sum of its proper divisors (238690084).

258118172 is a wasteful number, since it uses less digits than its factorization.

258118172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105677 (or 105675 counting only the distinct ones).

The product of its digits is 8960, while the sum is 35.

The square root of 258118172 is about 16066.0565167685. The cubic root of 258118172 is about 636.7068568631.

The spelling of 258118172 in words is "two hundred fifty-eight million, one hundred eighteen thousand, one hundred seventy-two".