127997512 has 24 divisors (see below), whose sum is σ = 248001750. Its totient is φ = 61930560.

The previous prime is 127997479. The next prime is 127997521. The reversal of 127997512 is 215799721.

It can be written as a sum of positive squares in only one way, i.e., 94750756 + 33246756 = 9734^2 + 5766^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 637 + ... + 16012.

Almost surely, 2^127997512 is an apocalyptic number.

It is an amenable number.

127997512 is a deficient number, since it is larger than the sum of its proper divisors (120004238).

127997512 is a wasteful number, since it uses less digits than its factorization.

127997512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16717 (or 16682 counting only the distinct ones).

The product of its digits is 79380, while the sum is 43.

The square root of 127997512 is about 11313.5985433460. The cubic root of 127997512 is about 503.9651546414.

The spelling of 127997512 in words is "one hundred twenty-seven million, nine hundred ninety-seven thousand, five hundred twelve".