164255305 has 16 divisors (see below), whose sum is σ = 208583424. Its totient is φ = 123914560.

The previous prime is 164255297. The next prime is 164255317. The reversal of 164255305 is 503552461.

It is not a de Polignac number, because 164255305 - 2³ = 164255297 is a prime.

It is a Duffinian number.

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, 1894 + ... + 18223.

It is an arithmetic number, because the mean of its divisors is an integer number (13036464).

Almost surely, 2^164255305 is an apocalyptic number.

It is an amenable number.

164255305 is a deficient number, since it is larger than the sum of its proper divisors (44328119).

164255305 is a wasteful number, since it uses less digits than its factorization.

164255305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20216.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 164255305 is about 12816.2125840671. The cubic root of 164255305 is about 547.6542575980.

The spelling of 164255305 in words is "one hundred sixty-four million, two hundred fifty-five thousand, three hundred five".