125013126272 has 16 divisors (see below), whose sum is σ = 249049587750. Its totient is φ = 62506563072.

The previous prime is 125013126263. The next prime is 125013126289. The reversal of 125013126272 is 272621310521.

It can be written as a sum of positive squares in only one way, i.e., 97528791616 + 27484334656 = 312296^2 + 165784^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488332397 + ... + 488332652.

Almost surely, 2^125013126272 is an apocalyptic number.

It is an amenable number.

125013126272 is a deficient number, since it is larger than the sum of its proper divisors (124036461478).

125013126272 is an frugal number, since it uses more digits than its factorization.

125013126272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976665063 (or 976665051 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 125013126272 its reverse (272621310521), we get a palindrome (397634436793).

The spelling of 125013126272 in words is "one hundred twenty-five billion, thirteen million, one hundred twenty-six thousand, two hundred seventy-two".