231264899 has 2 divisors, whose sum is σ = 231264900. Its totient is φ = 231264898.

The previous prime is 231264893. The next prime is 231264919. The reversal of 231264899 is 998462132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231264899 - 2⁴ = 231264883 is a prime.

It is not a weakly prime, because it can be changed into another prime (231264893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115632449 + 115632450.

It is an arithmetic number, because the mean of its divisors is an integer number (115632450).

Almost surely, 2^231264899 is an apocalyptic number.

231264899 is a deficient number, since it is larger than the sum of its proper divisors (1).

231264899 is an equidigital number, since it uses as much as digits as its factorization.

231264899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 231264899 is about 15207.3961939577. The cubic root of 231264899 is about 613.8136948149.

The spelling of 231264899 in words is "two hundred thirty-one million, two hundred sixty-four thousand, eight hundred ninety-nine".