164312539 has 2 divisors, whose sum is σ = 164312540. Its totient is φ = 164312538.

The previous prime is 164312441. The next prime is 164312563. The reversal of 164312539 is 935213461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164312539 - 2¹⁷ = 164181467 is a prime.

It is a super-2 number, since 2×164312539² = 53997220945253042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164342539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82156269 + 82156270.

It is an arithmetic number, because the mean of its divisors is an integer number (82156270).

Almost surely, 2^164312539 is an apocalyptic number.

164312539 is a deficient number, since it is larger than the sum of its proper divisors (1).

164312539 is an equidigital number, since it uses as much as digits as its factorization.

164312539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 164312539 is about 12818.4452645397. The cubic root of 164312539 is about 547.7178594076.

The spelling of 164312539 in words is "one hundred sixty-four million, three hundred twelve thousand, five hundred thirty-nine".