1272324356 has 6 divisors (see below), whose sum is σ = 2226567630. Its totient is φ = 636162176.

The previous prime is 1272324349. The next prime is 1272324401. The reversal of 1272324356 is 6534232721.

It can be written as a sum of positive squares in only one way, i.e., 1270922500 + 1401856 = 35650^2 + 1184^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159040541 + ... + 159040548.

It is an arithmetic number, because the mean of its divisors is an integer number (371094605).

Almost surely, 2^1272324356 is an apocalyptic number.

It is an amenable number.

1272324356 is a deficient number, since it is larger than the sum of its proper divisors (954243274).

1272324356 is a wasteful number, since it uses less digits than its factorization.

1272324356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318081093 (or 318081091 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The square root of 1272324356 is about 35669.6559557280. The cubic root of 1272324356 is about 1083.5923915585.

The spelling of 1272324356 in words is "one billion, two hundred seventy-two million, three hundred twenty-four thousand, three hundred fifty-six".