164044345 has 4 divisors (see below), whose sum is σ = 196853220. Its totient is φ = 131235472.

The previous prime is 164044337. The next prime is 164044399. The reversal of 164044345 is 543440461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81216144 + 82828201 = 9012^2 + 9101^2 .

It is a cyclic number.

It is not a de Polignac number, because 164044345 - 2³ = 164044337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16404430 + ... + 16404439.

It is an arithmetic number, because the mean of its divisors is an integer number (49213305).

Almost surely, 2^164044345 is an apocalyptic number.

It is an amenable number.

164044345 is a deficient number, since it is larger than the sum of its proper divisors (32808875).

164044345 is an equidigital number, since it uses as much as digits as its factorization.

164044345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32808874.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 164044345 is about 12807.9797392095. The cubic root of 164044345 is about 547.4196986820.

The spelling of 164044345 in words is "one hundred sixty-four million, forty-four thousand, three hundred forty-five".