125513672 has 8 divisors (see below), whose sum is σ = 235338150. Its totient is φ = 62756832.

The previous prime is 125513671. The next prime is 125513723. The reversal of 125513672 is 276315521.

It can be written as a sum of positive squares in only one way, i.e., 86750596 + 38763076 = 9314^2 + 6226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (125513671) by changing a digit.

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 as a sum of consecutive naturals, namely, 7844597 + ... + 7844612.

Almost surely, 2^125513672 is an apocalyptic number.

It is an amenable number.

125513672 is a deficient number, since it is larger than the sum of its proper divisors (109824478).

125513672 is a wasteful number, since it uses less digits than its factorization.

125513672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15689215 (or 15689211 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 125513672 is about 11203.2884458091. The cubic root of 125513672 is about 500.6839599709.

The spelling of 125513672 in words is "one hundred twenty-five million, five hundred thirteen thousand, six hundred seventy-two".