1272332056 has 16 divisors (see below), whose sum is σ = 2387579040. Its totient is φ = 635644320.

The previous prime is 1272332029. The next prime is 1272332063. The reversal of 1272332056 is 6502332721.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 54751 + ... + 74446.

It is an arithmetic number, because the mean of its divisors is an integer number (149223690).

Almost surely, 2^1272332056 is an apocalyptic number.

It is an amenable number.

1272332056 is a deficient number, since it is larger than the sum of its proper divisors (1115246984).

1272332056 is a wasteful number, since it uses less digits than its factorization.

1272332056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130434 (or 130430 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 1272332056 is about 35669.7638904437. The cubic root of 1272332056 is about 1083.5945774907.

Adding to 1272332056 its reverse (6502332721), we get a palindrome (7774664777).

The spelling of 1272332056 in words is "one billion, two hundred seventy-two million, three hundred thirty-two thousand, fifty-six".