268971431 has 2 divisors, whose sum is σ = 268971432. Its totient is φ = 268971430.

The previous prime is 268971413. The next prime is 268971497. The reversal of 268971431 is 134179862.

Together with previous prime (268971413) 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 268971431 - 2¹⁴ = 268955047 is a prime.

It is a super-2 number, since 2×268971431² = 144691261388375522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268977431) 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, 134485715 + 134485716.

It is an arithmetic number, because the mean of its divisors is an integer number (134485716).

Almost surely, 2^268971431 is an apocalyptic number.

268971431 is a deficient number, since it is larger than the sum of its proper divisors (1).

268971431 is an equidigital number, since it uses as much as digits as its factorization.

268971431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 268971431 is about 16400.3485023947. The cubic root of 268971431 is about 645.5086275105.

The spelling of 268971431 in words is "two hundred sixty-eight million, nine hundred seventy-one thousand, four hundred thirty-one".