164453539 has 2 divisors, whose sum is σ = 164453540. Its totient is φ = 164453538.

The previous prime is 164453521. The next prime is 164453551. The reversal of 164453539 is 935354461.

It is a strong prime.

It is an emirp because it is prime and its reverse (935354461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164453539 - 2⁵ = 164453507 is a prime.

It is not a weakly prime, because it can be changed into another prime (164453579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82226769 + 82226770.

It is an arithmetic number, because the mean of its divisors is an integer number (82226770).

Almost surely, 2^164453539 is an apocalyptic number.

164453539 is a deficient number, since it is larger than the sum of its proper divisors (1).

164453539 is an equidigital number, since it uses as much as digits as its factorization.

164453539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 164453539 is about 12823.9439721172. The cubic root of 164453539 is about 547.8744839695.

The spelling of 164453539 in words is "one hundred sixty-four million, four hundred fifty-three thousand, five hundred thirty-nine".