125157138 has 16 divisors (see below), whose sum is σ = 252226656. Its totient is φ = 41400320.

The previous prime is 125157121. The next prime is 125157181. The reversal of 125157138 is 831751521.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 125157099 and 125157108.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 78831 + ... + 80402.

It is an arithmetic number, because the mean of its divisors is an integer number (15764166).

Almost surely, 2^125157138 is an apocalyptic number.

125157138 is an abundant number, since it is smaller than the sum of its proper divisors (127069518).

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

125157138 is a wasteful number, since it uses less digits than its factorization.

125157138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159369.

The product of its digits is 8400, while the sum is 33.

The square root of 125157138 is about 11187.3651053320. The cubic root of 125157138 is about 500.2094295996.

The spelling of 125157138 in words is "one hundred twenty-five million, one hundred fifty-seven thousand, one hundred thirty-eight".