125501972 has 6 divisors (see below), whose sum is σ = 219628458. Its totient is φ = 62750984.

The previous prime is 125501969. The next prime is 125502023. The reversal of 125501972 is 279105521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 118287376 + 7214596 = 10876^2 + 2686^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15687743 + ... + 15687750.

It is an arithmetic number, because the mean of its divisors is an integer number (36604743).

Almost surely, 2^125501972 is an apocalyptic number.

It is an amenable number.

125501972 is a deficient number, since it is larger than the sum of its proper divisors (94126486).

125501972 is a wasteful number, since it uses less digits than its factorization.

125501972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31375497 (or 31375495 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 125501972 is about 11202.7662655257. The cubic root of 125501972 is about 500.6684020792.

The spelling of 125501972 in words is "one hundred twenty-five million, five hundred one thousand, nine hundred seventy-two".