164012905 has 8 divisors (see below), whose sum is σ = 224932032. Its totient is φ = 112465968.

The previous prime is 164012887. The next prime is 164012929. The reversal of 164012905 is 509210461.

164012905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 164012905 - 2⁵ = 164012873 is a prime.

It is a Duffinian 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, 2343007 + ... + 2343076.

It is an arithmetic number, because the mean of its divisors is an integer number (28116504).

Almost surely, 2^164012905 is an apocalyptic number.

It is an amenable number.

164012905 is a deficient number, since it is larger than the sum of its proper divisors (60919127).

164012905 is an equidigital number, since it uses as much as digits as its factorization.

164012905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686095.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 164012905 is about 12806.7523205534. The cubic root of 164012905 is about 547.3847244500.

It can be divided in two parts, 16401 and 2905, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 164012905 in words is "one hundred sixty-four million, twelve thousand, nine hundred five".