125207972 has 6 divisors (see below), whose sum is σ = 219113958. Its totient is φ = 62603984.

The previous prime is 125207947. The next prime is 125207987. The reversal of 125207972 is 279702521.

It can be written as a sum of positive squares in only one way, i.e., 108035236 + 17172736 = 10394^2 + 4144^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650993 + ... + 15651000.

It is an arithmetic number, because the mean of its divisors is an integer number (36518993).

Almost surely, 2^125207972 is an apocalyptic number.

It is an amenable number.

125207972 is a deficient number, since it is larger than the sum of its proper divisors (93905986).

125207972 is a wasteful number, since it uses less digits than its factorization.

125207972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31301997 (or 31301995 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 125207972 is about 11189.6368126941. The cubic root of 125207972 is about 500.2771423558.

The spelling of 125207972 in words is "one hundred twenty-five million, two hundred seven thousand, nine hundred seventy-two".