164502593 has 2 divisors, whose sum is σ = 164502594. Its totient is φ = 164502592.

The previous prime is 164502553. The next prime is 164502607. The reversal of 164502593 is 395205461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140019889 + 24482704 = 11833^2 + 4948^2 .

It is a cyclic number.

It is not a de Polignac number, because 164502593 - 2¹² = 164498497 is a prime.

It is a super-2 number, since 2×164502593² = 54122206207447298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164502553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82251296 + 82251297.

It is an arithmetic number, because the mean of its divisors is an integer number (82251297).

Almost surely, 2^164502593 is an apocalyptic number.

It is an amenable number.

164502593 is a deficient number, since it is larger than the sum of its proper divisors (1).

164502593 is an equidigital number, since it uses as much as digits as its factorization.

164502593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 164502593 is about 12825.8564236467. The cubic root of 164502593 is about 547.9289527744.

The spelling of 164502593 in words is "one hundred sixty-four million, five hundred two thousand, five hundred ninety-three".