125438615 has 8 divisors (see below), whose sum is σ = 151202688. Its totient is φ = 99900000.

The previous prime is 125438609. The next prime is 125438633. The reversal of 125438615 is 516834521.

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

It is a de Polignac number, because none of the positive numbers 2^k-125438615 is a prime.

It is a super-2 number, since 2×125438615² = 31469692266236450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 55136 + ... + 57365.

It is an arithmetic number, because the mean of its divisors is an integer number (18900336).

Almost surely, 2^125438615 is an apocalyptic number.

125438615 is a deficient number, since it is larger than the sum of its proper divisors (25764073).

125438615 is a wasteful number, since it uses less digits than its factorization.

125438615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112729.

The product of its digits is 28800, while the sum is 35.

The square root of 125438615 is about 11199.9381694722. The cubic root of 125438615 is about 500.5841373015.

The spelling of 125438615 in words is "one hundred twenty-five million, four hundred thirty-eight thousand, six hundred fifteen".