1272270056 has 8 divisors (see below), whose sum is σ = 2385506370. Its totient is φ = 636135024.

The previous prime is 1272270053. The next prime is 1272270073. The reversal of 1272270056 is 6500722721.

It can be written as a sum of positive squares in only one way, i.e., 890067556 + 382202500 = 29834^2 + 19550^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1272270053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79516871 + ... + 79516886.

Almost surely, 2^1272270056 is an apocalyptic number.

It is an amenable number.

1272270056 is a deficient number, since it is larger than the sum of its proper divisors (1113236314).

1272270056 is a wasteful number, since it uses less digits than its factorization.

1272270056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159033763 (or 159033759 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 1272270056 is about 35668.8947964469. The cubic root of 1272270056 is about 1083.5769762273.

Adding to 1272270056 its reverse (6500722721), we get a palindrome (7772992777).

The spelling of 1272270056 in words is "one billion, two hundred seventy-two million, two hundred seventy thousand, fifty-six".