164395146 has 16 divisors (see below), whose sum is σ = 328954464. Its totient is φ = 54771024.

The previous prime is 164395141. The next prime is 164395159. The reversal of 164395146 is 641593461.

It is a super-2 number, since 2×164395146² = 54051528056722632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164395141) 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 7 ways as a sum of consecutive naturals, for example, 9001 + ... + 20243.

It is an arithmetic number, because the mean of its divisors is an integer number (20559654).

Almost surely, 2^164395146 is an apocalyptic number.

164395146 is an abundant number, since it is smaller than the sum of its proper divisors (164559318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164395146 is a wasteful number, since it uses less digits than its factorization.

164395146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13685.

The product of its digits is 77760, while the sum is 39.

The square root of 164395146 is about 12821.6670522986. The cubic root of 164395146 is about 547.8096311603.

The spelling of 164395146 in words is "one hundred sixty-four million, three hundred ninety-five thousand, one hundred forty-six".