164170631 has 2 divisors, whose sum is σ = 164170632. Its totient is φ = 164170630.

The previous prime is 164170607. The next prime is 164170639. The reversal of 164170631 is 136071461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164170631 - 2¹⁴ = 164154247 is a prime.

It is a super-2 number, since 2×164170631² = 53903992165876322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 164170594 and 164170603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164170639) 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, 82085315 + 82085316.

It is an arithmetic number, because the mean of its divisors is an integer number (82085316).

Almost surely, 2^164170631 is an apocalyptic number.

164170631 is a deficient number, since it is larger than the sum of its proper divisors (1).

164170631 is an equidigital number, since it uses as much as digits as its factorization.

164170631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 164170631 is about 12812.9087642112. The cubic root of 164170631 is about 547.5601357325.

The spelling of 164170631 in words is "one hundred sixty-four million, one hundred seventy thousand, six hundred thirty-one".