164365517 has 2 divisors, whose sum is σ = 164365518. Its totient is φ = 164365516.

The previous prime is 164365499. The next prime is 164365541. The reversal of 164365517 is 715563461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162970756 + 1394761 = 12766^2 + 1181^2 .

It is a cyclic number.

It is not a de Polignac number, because 164365517 - 2⁸ = 164365261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164365217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82182758 + 82182759.

It is an arithmetic number, because the mean of its divisors is an integer number (82182759).

Almost surely, 2^164365517 is an apocalyptic number.

It is an amenable number.

164365517 is a deficient number, since it is larger than the sum of its proper divisors (1).

164365517 is an equidigital number, since it uses as much as digits as its factorization.

164365517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 164365517 is about 12820.5115732563. The cubic root of 164365517 is about 547.7767185365.

The spelling of 164365517 in words is "one hundred sixty-four million, three hundred sixty-five thousand, five hundred seventeen".