164315445 has 16 divisors (see below), whose sum is σ = 300462720. Its totient is φ = 75115584.

The previous prime is 164315443. The next prime is 164315467. The reversal of 164315445 is 544513461.

It is not a de Polignac number, because 164315445 - 2¹ = 164315443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164315441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782350 + ... + 782559.

It is an arithmetic number, because the mean of its divisors is an integer number (18778920).

Almost surely, 2^164315445 is an apocalyptic number.

164315445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164315445 is a deficient number, since it is larger than the sum of its proper divisors (136147275).

164315445 is a wasteful number, since it uses less digits than its factorization.

164315445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564924.

The product of its digits is 28800, while the sum is 33.

The square root of 164315445 is about 12818.5586163188. The cubic root of 164315445 is about 547.7210883328.

The spelling of 164315445 in words is "one hundred sixty-four million, three hundred fifteen thousand, four hundred forty-five".