164453543 has 16 divisors (see below), whose sum is σ = 175481856. Its totient is φ = 153861120.

The previous prime is 164453539. The next prime is 164453551. The reversal of 164453543 is 345354461.

It is a cyclic number.

It is not a de Polignac number, because 164453543 - 2² = 164453539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164453503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142055 + ... + 143207.

It is an arithmetic number, because the mean of its divisors is an integer number (10967616).

Almost surely, 2^164453543 is an apocalyptic number.

164453543 is a deficient number, since it is larger than the sum of its proper divisors (11028313).

164453543 is a wasteful number, since it uses less digits than its factorization.

164453543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334.

The product of its digits is 86400, while the sum is 35.

The square root of 164453543 is about 12823.9441280754. The cubic root of 164453543 is about 547.8744884115.

The spelling of 164453543 in words is "one hundred sixty-four million, four hundred fifty-three thousand, five hundred forty-three".