1272885112 has 8 divisors (see below), whose sum is σ = 2386659600. Its totient is φ = 636442552.

The previous prime is 1272885083. The next prime is 1272885157. The reversal of 1272885112 is 2115882721.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79555312 + ... + 79555327.

It is an arithmetic number, because the mean of its divisors is an integer number (298332450).

Almost surely, 2^1272885112 is an apocalyptic number.

It is an amenable number.

1272885112 is a deficient number, since it is larger than the sum of its proper divisors (1113774488).

1272885112 is a wasteful number, since it uses less digits than its factorization.

1272885112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159110645 (or 159110641 counting only the distinct ones).

The product of its digits is 17920, while the sum is 37.

The square root of 1272885112 is about 35677.5154964580. The cubic root of 1272885112 is about 1083.7515600091.

The spelling of 1272885112 in words is "one billion, two hundred seventy-two million, eight hundred eighty-five thousand, one hundred twelve".