272891431 has 2 divisors, whose sum is σ = 272891432. Its totient is φ = 272891430.

The previous prime is 272891413. The next prime is 272891453. The reversal of 272891431 is 134198272.

Together with previous prime (272891413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 272891431 - 2⁷ = 272891303 is a prime.

It is a super-2 number, since 2×272891431² = 148939466226455522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272894431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136445715 + 136445716.

It is an arithmetic number, because the mean of its divisors is an integer number (136445716).

Almost surely, 2^272891431 is an apocalyptic number.

272891431 is a deficient number, since it is larger than the sum of its proper divisors (1).

272891431 is an equidigital number, since it uses as much as digits as its factorization.

272891431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 272891431 is about 16519.4258677473. The cubic root of 272891431 is about 648.6294046850.

The spelling of 272891431 in words is "two hundred seventy-two million, eight hundred ninety-one thousand, four hundred thirty-one".