125343731272 has 24 divisors (see below), whose sum is σ = 248039972550. Its totient is φ = 59373345024.

The previous prime is 125343731263. The next prime is 125343731297. The reversal of 125343731272 is 272137343521.

It can be written as a sum of positive squares in only one way, i.e., 122565808836 + 2777922436 = 350094^2 + 52706^2 .

It is a super-2 number, since 2×125343731272² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21697897 + ... + 21703672.

Almost surely, 2^125343731272 is an apocalyptic number.

It is an amenable number.

125343731272 is a deficient number, since it is larger than the sum of its proper divisors (122696241278).

125343731272 is a wasteful number, since it uses less digits than its factorization.

125343731272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43401613 (or 43401590 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The spelling of 125343731272 in words is "one hundred twenty-five billion, three hundred forty-three million, seven hundred thirty-one thousand, two hundred seventy-two".