164711593 has 2 divisors, whose sum is σ = 164711594. Its totient is φ = 164711592.

The previous prime is 164711549. The next prime is 164711633. The reversal of 164711593 is 395117461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154554624 + 10156969 = 12432^2 + 3187^2 .

It is a cyclic number.

It is not a de Polignac number, because 164711593 - 2⁹ = 164711081 is a prime.

It is not a weakly prime, because it can be changed into another prime (164711293) 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, 82355796 + 82355797.

It is an arithmetic number, because the mean of its divisors is an integer number (82355797).

Almost surely, 2^164711593 is an apocalyptic number.

It is an amenable number.

164711593 is a deficient number, since it is larger than the sum of its proper divisors (1).

164711593 is an equidigital number, since it uses as much as digits as its factorization.

164711593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 164711593 is about 12834.0014414835. The cubic root of 164711593 is about 548.1609018790.

Subtracting from 164711593 its sum of digits (37), we obtain a square (164711556 = 12834²).

The spelling of 164711593 in words is "one hundred sixty-four million, seven hundred eleven thousand, five hundred ninety-three".