1272127604 has 24 divisors (see below), whose sum is σ = 2429698656. Its totient is φ = 577980000.

The previous prime is 1272127603. The next prime is 1272127607. The reversal of 1272127604 is 4067212721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272127603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120374 + ... + 130514.

It is an arithmetic number, because the mean of its divisors is an integer number (101237444).

Almost surely, 2^1272127604 is an apocalyptic number.

It is an amenable number.

1272127604 is a deficient number, since it is larger than the sum of its proper divisors (1157571052).

1272127604 is a wasteful number, since it uses less digits than its factorization.

1272127604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13007 (or 13005 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 1272127604 is about 35666.8978746400. The cubic root of 1272127604 is about 1083.5365331709.

The spelling of 1272127604 in words is "one billion, two hundred seventy-two million, one hundred twenty-seven thousand, six hundred four".