252085138 has 16 divisors (see below), whose sum is σ = 389934720. Its totient is φ = 122148000.

The previous prime is 252085051. The next prime is 252085147. The reversal of 252085138 is 831580252.

252085138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203 + ... + 22561.

It is an arithmetic number, because the mean of its divisors is an integer number (24370920).

Almost surely, 2^252085138 is an apocalyptic number.

252085138 is a deficient number, since it is larger than the sum of its proper divisors (137849582).

252085138 is a wasteful number, since it uses less digits than its factorization.

252085138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20553.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 252085138 is about 15877.1892348740. The cubic root of 252085138 is about 631.7070843257.

The spelling of 252085138 in words is "two hundred fifty-two million, eighty-five thousand, one hundred thirty-eight".