195564 has 24 divisors (see below), whose sum is σ = 468160. Its totient is φ = 63504.

The previous prime is 195541. The next prime is 195581. The reversal of 195564 is 465591.

It is a nialpdrome in base 12.

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 7 ways as a sum of consecutive naturals, for example, 327 + ... + 705.

2¹⁹⁵⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

195564 is an abundant number, since it is smaller than the sum of its proper divisors (272596).

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

195564 is a wasteful number, since it uses less digits than its factorization.

195564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 195564 is about 442.2261864702. The cubic root of 195564 is about 58.0447534098.

The spelling of 195564 in words is "one hundred ninety-five thousand, five hundred sixty-four".