164253065 has 16 divisors (see below), whose sum is σ = 209154960. Its totient is φ = 123402240.

The previous prime is 164253049. The next prime is 164253091. The reversal of 164253065 is 560352461.

It can be written as a sum of positive squares in 8 ways, for example, as 3952144 + 160300921 = 1988^2 + 12661^2 .

It is not a de Polignac number, because 164253065 - 2⁴ = 164253049 is a prime.

It is an unprimeable number.

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, 42431 + ... + 46139.

It is an arithmetic number, because the mean of its divisors is an integer number (13072185).

Almost surely, 2^164253065 is an apocalyptic number.

It is an amenable number.

164253065 is a deficient number, since it is larger than the sum of its proper divisors (44901895).

164253065 is a wasteful number, since it uses less digits than its factorization.

164253065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 164253065 is about 12816.1251944572. The cubic root of 164253065 is about 547.6517680770.

The spelling of 164253065 in words is "one hundred sixty-four million, two hundred fifty-three thousand, sixty-five".