125392731 has 8 divisors (see below), whose sum is σ = 177025104. Its totient is φ = 78677760.

The previous prime is 125392703. The next prime is 125392739. The reversal of 125392731 is 137293521.

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

It is not a de Polignac number, because 125392731 - 2⁵ = 125392699 is a prime.

It is a super-2 number, since 2×125392731² = 31446673975276722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125392692 and 125392701.

It is not an unprimeable number, because it can be changed into a prime (125392739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229290 + ... + 1229391.

It is an arithmetic number, because the mean of its divisors is an integer number (22128138).

Almost surely, 2^125392731 is an apocalyptic number.

125392731 is a deficient number, since it is larger than the sum of its proper divisors (51632373).

125392731 is a wasteful number, since it uses less digits than its factorization.

125392731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458701.

The product of its digits is 11340, while the sum is 33.

The square root of 125392731 is about 11197.8895779517. The cubic root of 125392731 is about 500.5230938881.

The spelling of 125392731 in words is "one hundred twenty-five million, three hundred ninety-two thousand, seven hundred thirty-one".