1272192412 has 12 divisors (see below), whose sum is σ = 2242588320. Its totient is φ = 631452896.

The previous prime is 1272192407. The next prime is 1272192421. The reversal of 1272192412 is 2142912721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160212 + ... + 1161307.

It is an arithmetic number, because the mean of its divisors is an integer number (186882360).

Almost surely, 2^1272192412 is an apocalyptic number.

It is an amenable number.

1272192412 is a deficient number, since it is larger than the sum of its proper divisors (970395908).

1272192412 is a wasteful number, since it uses less digits than its factorization.

1272192412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321660 (or 2321658 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 1272192412 is about 35667.8063805443. The cubic root of 1272192412 is about 1083.5549329612.

The spelling of 1272192412 in words is "one billion, two hundred seventy-two million, one hundred ninety-two thousand, four hundred twelve".