1272875564 has 12 divisors (see below), whose sum is σ = 2231608344. Its totient is φ = 635273184.

The previous prime is 1272875563. The next prime is 1272875579. The reversal of 1272875564 is 4655782721.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1272875563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288689 + ... + 293064.

It is an arithmetic number, because the mean of its divisors is an integer number (185967362).

Almost surely, 2^1272875564 is an apocalyptic number.

It is an amenable number.

1272875564 is a deficient number, since it is larger than the sum of its proper divisors (958732780).

1272875564 is a wasteful number, since it uses less digits than its factorization.

1272875564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582304 (or 582302 counting only the distinct ones).

The product of its digits is 940800, while the sum is 47.

The square root of 1272875564 is about 35677.3816864411. The cubic root of 1272875564 is about 1083.7488502369.

The spelling of 1272875564 in words is "one billion, two hundred seventy-two million, eight hundred seventy-five thousand, five hundred sixty-four".