1272691413 has 16 divisors (see below), whose sum is σ = 2154821760. Its totient is φ = 727252128.

The previous prime is 1272691411. The next prime is 1272691429. The reversal of 1272691413 is 3141962721.

It is not a de Polignac number, because 1272691413 - 2¹ = 1272691411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272691411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3366720 + ... + 3367097.

It is an arithmetic number, because the mean of its divisors is an integer number (134676360).

Almost surely, 2^1272691413 is an apocalyptic number.

It is an amenable number.

1272691413 is a deficient number, since it is larger than the sum of its proper divisors (882130347).

1272691413 is an equidigital number, since it uses as much as digits as its factorization.

1272691413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6733833 (or 6733827 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1272691413 is about 35674.8008123381. The cubic root of 1272691413 is about 1083.6965845729.

The spelling of 1272691413 in words is "one billion, two hundred seventy-two million, six hundred ninety-one thousand, four hundred thirteen".