272731231 has 4 divisors (see below), whose sum is σ = 273137152. Its totient is φ = 272325312.

The previous prime is 272731219. The next prime is 272731237. The reversal of 272731231 is 132137272.

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 272731231 - 2⁹ = 272730719 is a prime.

It is a super-2 number, since 2×272731231² = 148764648725550722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272731231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272731237) 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, 201951 + ... + 203296.

It is an arithmetic number, because the mean of its divisors is an integer number (68284288).

Almost surely, 2^272731231 is an apocalyptic number.

272731231 is a deficient number, since it is larger than the sum of its proper divisors (405921).

272731231 is an equidigital number, since it uses as much as digits as its factorization.

272731231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405920.

The product of its digits is 3528, while the sum is 28.

The square root of 272731231 is about 16514.5763191188. The cubic root of 272731231 is about 648.5024546005.

The spelling of 272731231 in words is "two hundred seventy-two million, seven hundred thirty-one thousand, two hundred thirty-one".