164322845 has 8 divisors (see below), whose sum is σ = 203987160. Its totient is φ = 126925120.

The previous prime is 164322827. The next prime is 164322871. The reversal of 164322845 is 548223461.

It can be written as a sum of positive squares in 4 ways, for example, as 33860761 + 130462084 = 5819^2 + 11422^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164322845 - 2¹⁶ = 164257309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566486 + ... + 566775.

It is an arithmetic number, because the mean of its divisors is an integer number (25498395).

Almost surely, 2^164322845 is an apocalyptic number.

It is an amenable number.

164322845 is a deficient number, since it is larger than the sum of its proper divisors (39664315).

164322845 is a wasteful number, since it uses less digits than its factorization.

164322845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133295.

The product of its digits is 46080, while the sum is 35.

The square root of 164322845 is about 12818.8472570664. The cubic root of 164322845 is about 547.7293104757.

The spelling of 164322845 in words is "one hundred sixty-four million, three hundred twenty-two thousand, eight hundred forty-five".