164538195 has 16 divisors (see below), whose sum is σ = 277117440. Its totient is φ = 83134944.

The previous prime is 164538193. The next prime is 164538221. The reversal of 164538195 is 591835461.

It is not a de Polignac number, because 164538195 - 2¹ = 164538193 is a prime.

It is a super-2 number, since 2×164538195² = 54145635227716050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164538193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288379 + ... + 288948.

It is an arithmetic number, because the mean of its divisors is an integer number (17319840).

Almost surely, 2^164538195 is an apocalyptic number.

164538195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164538195 is a deficient number, since it is larger than the sum of its proper divisors (112579245).

164538195 is a wasteful number, since it uses less digits than its factorization.

164538195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577354.

The product of its digits is 129600, while the sum is 42.

The square root of 164538195 is about 12827.2442480838. The cubic root of 164538195 is about 547.9684779051.

The spelling of 164538195 in words is "one hundred sixty-four million, five hundred thirty-eight thousand, one hundred ninety-five".