125138698 has 8 divisors (see below), whose sum is σ = 187857540. Its totient is φ = 62519520.

The previous prime is 125138687. The next prime is 125138737. The reversal of 125138698 is 896831521.

It can be written as a sum of positive squares in 2 ways, for example, as 121815369 + 3323329 = 11037^2 + 1823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21693 + ... + 26848.

Almost surely, 2^125138698 is an apocalyptic number.

125138698 is a deficient number, since it is larger than the sum of its proper divisors (62718842).

125138698 is a wasteful number, since it uses less digits than its factorization.

125138698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49832.

The product of its digits is 103680, while the sum is 43.

The square root of 125138698 is about 11186.5409309581. The cubic root of 125138698 is about 500.1848623101.

The spelling of 125138698 in words is "one hundred twenty-five million, one hundred thirty-eight thousand, six hundred ninety-eight".