272205431 has 2 divisors, whose sum is σ = 272205432. Its totient is φ = 272205430.

The previous prime is 272205379. The next prime is 272205443. The reversal of 272205431 is 134502272.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272205431 is a prime.

It is a super-2 number, since 2×272205431² = 148191593331791522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 272205431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272205331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136102715 + 136102716.

It is an arithmetic number, because the mean of its divisors is an integer number (136102716).

Almost surely, 2^272205431 is an apocalyptic number.

272205431 is a deficient number, since it is larger than the sum of its proper divisors (1).

272205431 is an equidigital number, since it uses as much as digits as its factorization.

272205431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 272205431 is about 16498.6493689635. The cubic root of 272205431 is about 648.0854360437.

The spelling of 272205431 in words is "two hundred seventy-two million, two hundred five thousand, four hundred thirty-one".