230166631 has 2 divisors, whose sum is σ = 230166632. Its totient is φ = 230166630.

The previous prime is 230166623. The next prime is 230166637. The reversal of 230166631 is 136661032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230166631 - 2³ = 230166623 is a prime.

It is a super-2 number, since 2×230166631² = 105953356051780322, which contains 22 as substring.

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 230166631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230166637) 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, 115083315 + 115083316.

It is an arithmetic number, because the mean of its divisors is an integer number (115083316).

Almost surely, 2^230166631 is an apocalyptic number.

230166631 is a deficient number, since it is larger than the sum of its proper divisors (1).

230166631 is an equidigital number, since it uses as much as digits as its factorization.

230166631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 230166631 is about 15171.2435548310. The cubic root of 230166631 is about 612.8404935085.

The spelling of 230166631 in words is "two hundred thirty million, one hundred sixty-six thousand, six hundred thirty-one".