125292731 has 8 divisors (see below), whose sum is σ = 133795200. Its totient is φ = 117069120.

The previous prime is 125292709. The next prime is 125292743. The reversal of 125292731 is 137292521.

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

It is a cyclic number.

It is not a de Polignac number, because 125292731 - 2⁶ = 125292667 is a prime.

It is a super-2 number, since 2×125292731² = 31396536882876722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125292701) 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, 68786 + ... + 70583.

It is an arithmetic number, because the mean of its divisors is an integer number (16724400).

Almost surely, 2^125292731 is an apocalyptic number.

125292731 is a deficient number, since it is larger than the sum of its proper divisors (8502469).

125292731 is a wasteful number, since it uses less digits than its factorization.

125292731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139429.

The product of its digits is 7560, while the sum is 32.

The square root of 125292731 is about 11193.4235602875. The cubic root of 125292731 is about 500.3900037151.

The spelling of 125292731 in words is "one hundred twenty-five million, two hundred ninety-two thousand, seven hundred thirty-one".