272644531 has 2 divisors, whose sum is σ = 272644532. Its totient is φ = 272644530.

The previous prime is 272644523. The next prime is 272644549. The reversal of 272644531 is 135446272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 272644531 - 2³ = 272644523 is a prime.

It is a super-2 number, since 2×272644531² = 148670080568419922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (272644501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136322265 + 136322266.

It is an arithmetic number, because the mean of its divisors is an integer number (136322266).

Almost surely, 2^272644531 is an apocalyptic number.

272644531 is a deficient number, since it is larger than the sum of its proper divisors (1).

272644531 is an equidigital number, since it uses as much as digits as its factorization.

272644531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 272644531 is about 16511.9511566623. The cubic root of 272644531 is about 648.4337286713.

The spelling of 272644531 in words is "two hundred seventy-two million, six hundred forty-four thousand, five hundred thirty-one".