164044801 has 4 divisors (see below), whose sum is σ = 164466900. Its totient is φ = 163622704.

The previous prime is 164044723. The next prime is 164044817. The reversal of 164044801 is 108440461.

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 33628401 + 130416400 = 5799^2 + 11420^2 .

It is a cyclic number.

It is not a de Polignac number, because 164044801 - 2¹⁵ = 164012033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164044801.

It is not an unprimeable number, because it can be changed into a prime (164044201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210466 + ... + 211243.

It is an arithmetic number, because the mean of its divisors is an integer number (41116725).

Almost surely, 2^164044801 is an apocalyptic number.

It is an amenable number.

164044801 is a deficient number, since it is larger than the sum of its proper divisors (422099).

164044801 is an equidigital number, since it uses as much as digits as its factorization.

164044801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422098.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 164044801 is about 12807.9975405994. The cubic root of 164044801 is about 547.4202059090.

The spelling of 164044801 in words is "one hundred sixty-four million, forty-four thousand, eight hundred one".