164025317 has 2 divisors, whose sum is σ = 164025318. Its totient is φ = 164025316.

The previous prime is 164025311. The next prime is 164025319. The reversal of 164025317 is 713520461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134420836 + 29604481 = 11594^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 164025317 - 2²⁰ = 162976741 is a prime.

Together with 164025319, it forms a pair of twin primes.

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 164025317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164025311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82012658 + 82012659.

It is an arithmetic number, because the mean of its divisors is an integer number (82012659).

Almost surely, 2^164025317 is an apocalyptic number.

It is an amenable number.

164025317 is a deficient number, since it is larger than the sum of its proper divisors (1).

164025317 is an equidigital number, since it uses as much as digits as its factorization.

164025317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 164025317 is about 12807.2368995033. The cubic root of 164025317 is about 547.3985322412.

Adding to 164025317 its reverse (713520461), we get a palindrome (877545778).

The spelling of 164025317 in words is "one hundred sixty-four million, twenty-five thousand, three hundred seventeen".