272631613 has 4 divisors (see below), whose sum is σ = 275179680. Its totient is φ = 270083548.

The previous prime is 272631587. The next prime is 272631647. The reversal of 272631613 is 316136272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 272631613 - 2⁹ = 272631101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272631683) 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, 1273873 + ... + 1274086.

It is an arithmetic number, because the mean of its divisors is an integer number (68794920).

Almost surely, 2^272631613 is an apocalyptic number.

It is an amenable number.

272631613 is a deficient number, since it is larger than the sum of its proper divisors (2548067).

272631613 is a wasteful number, since it uses less digits than its factorization.

272631613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548066.

The product of its digits is 9072, while the sum is 31.

The square root of 272631613 is about 16511.5599808134. The cubic root of 272631613 is about 648.4234874986.

Adding to 272631613 its reverse (316136272), we get a palindrome (588767885).

The spelling of 272631613 in words is "two hundred seventy-two million, six hundred thirty-one thousand, six hundred thirteen".