164254631 has 2 divisors, whose sum is σ = 164254632. Its totient is φ = 164254630.

The previous prime is 164254609. The next prime is 164254669. The reversal of 164254631 is 136452461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164254631 - 2⁶ = 164254567 is a prime.

It is a super-2 number, since 2×164254631² = 53959167609892322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164254691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82127315 + 82127316.

It is an arithmetic number, because the mean of its divisors is an integer number (82127316).

Almost surely, 2^164254631 is an apocalyptic number.

164254631 is a deficient number, since it is larger than the sum of its proper divisors (1).

164254631 is an equidigital number, since it uses as much as digits as its factorization.

164254631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 164254631 is about 12816.1862892204. The cubic root of 164254631 is about 547.6535085213.

The spelling of 164254631 in words is "one hundred sixty-four million, two hundred fifty-four thousand, six hundred thirty-one".