164871995 has 8 divisors (see below), whose sum is σ = 198940560. Its totient is φ = 131168160.

The previous prime is 164871961. The next prime is 164872007. The reversal of 164871995 is 599178461.

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

It is not a de Polignac number, because 164871995 - 2¹⁶ = 164806459 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90185 + ... + 91994.

It is an arithmetic number, because the mean of its divisors is an integer number (24867570).

Almost surely, 2^164871995 is an apocalyptic number.

164871995 is a deficient number, since it is larger than the sum of its proper divisors (34068565).

164871995 is a wasteful number, since it uses less digits than its factorization.

164871995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182365.

The product of its digits is 544320, while the sum is 50.

The square root of 164871995 is about 12840.2490240649. The cubic root of 164871995 is about 548.3387836682.

The spelling of 164871995 in words is "one hundred sixty-four million, eight hundred seventy-one thousand, nine hundred ninety-five".