164374631 has 2 divisors, whose sum is σ = 164374632. Its totient is φ = 164374630.

The previous prime is 164374627. The next prime is 164374663. The reversal of 164374631 is 136473461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164374631 - 2² = 164374627 is a prime.

It is a super-2 number, since 2×164374631² = 54038038632772322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164374591 and 164374600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164304631) 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, 82187315 + 82187316.

It is an arithmetic number, because the mean of its divisors is an integer number (82187316).

Almost surely, 2^164374631 is an apocalyptic number.

164374631 is a deficient number, since it is larger than the sum of its proper divisors (1).

164374631 is an equidigital number, since it uses as much as digits as its factorization.

164374631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 164374631 is about 12820.8670143637. The cubic root of 164374631 is about 547.7868430136.

The spelling of 164374631 in words is "one hundred sixty-four million, three hundred seventy-four thousand, six hundred thirty-one".