1272872411 has 4 divisors (see below), whose sum is σ = 1288984800. Its totient is φ = 1256760024.

The previous prime is 1272872407. The next prime is 1272872413. The reversal of 1272872411 is 1142782721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1272872411 - 2² = 1272872407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272872413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8056076 + ... + 8056233.

It is an arithmetic number, because the mean of its divisors is an integer number (322246200).

Almost surely, 2^1272872411 is an apocalyptic number.

1272872411 is a deficient number, since it is larger than the sum of its proper divisors (16112389).

1272872411 is an equidigital number, since it uses as much as digits as its factorization.

1272872411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16112388.

The product of its digits is 12544, while the sum is 35.

The square root of 1272872411 is about 35677.3374987540. The cubic root of 1272872411 is about 1083.7479553961.

The spelling of 1272872411 in words is "one billion, two hundred seventy-two million, eight hundred seventy-two thousand, four hundred eleven".