125139124 has 12 divisors (see below), whose sum is σ = 238902048. Its totient is φ = 56881400.

The previous prime is 125139103. The next prime is 125139127. The reversal of 125139124 is 421931521.

It is a junction number, because it is equal to n+sod(n) for n = 125139092 and 125139101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125139127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421992 + ... + 1422079.

It is an arithmetic number, because the mean of its divisors is an integer number (19908504).

Almost surely, 2^125139124 is an apocalyptic number.

It is an amenable number.

125139124 is a deficient number, since it is larger than the sum of its proper divisors (113762924).

125139124 is a wasteful number, since it uses less digits than its factorization.

125139124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844086 (or 2844084 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 125139124 is about 11186.5599716803. The cubic root of 125139124 is about 500.1854298897.

The spelling of 125139124 in words is "one hundred twenty-five million, one hundred thirty-nine thousand, one hundred twenty-four".