164250013 has 2 divisors, whose sum is σ = 164250014. Its totient is φ = 164250012.

The previous prime is 164249983. The next prime is 164250017. The reversal of 164250013 is 310052461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163379524 + 870489 = 12782^2 + 933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164250013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164250017) 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, 82125006 + 82125007.

It is an arithmetic number, because the mean of its divisors is an integer number (82125007).

Almost surely, 2^164250013 is an apocalyptic number.

It is an amenable number.

164250013 is a deficient number, since it is larger than the sum of its proper divisors (1).

164250013 is an equidigital number, since it uses as much as digits as its factorization.

164250013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 164250013 is about 12816.0061251546. The cubic root of 164250013 is about 547.6483760682.

The spelling of 164250013 in words is "one hundred sixty-four million, two hundred fifty thousand, thirteen".