125572071731 has 16 divisors (see below), whose sum is σ = 130614171840. Its totient is φ = 120578949120.

The previous prime is 125572071727. The next prime is 125572071743. The reversal of 125572071731 is 137170275521.

It is a cyclic number.

It is not a de Polignac number, because 125572071731 - 2² = 125572071727 is a prime.

It is a super-2 number, since 2×125572071731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125572071931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4809071 + ... + 4835111.

It is an arithmetic number, because the mean of its divisors is an integer number (8163385740).

Almost surely, 2^125572071731 is an apocalyptic number.

125572071731 is a deficient number, since it is larger than the sum of its proper divisors (5042100109).

125572071731 is a wasteful number, since it uses less digits than its factorization.

125572071731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26974.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 125572071731 in words is "one hundred twenty-five billion, five hundred seventy-two million, seventy-one thousand, seven hundred thirty-one".