195516 has 18 divisors (see below), whose sum is σ = 494312. Its totient is φ = 65160.

The previous prime is 195511. The next prime is 195527. The reversal of 195516 is 615591.

It is a tau number, because it is divible by the number of its divisors (18).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 195516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195511) by changing a digit.

195516 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 5 ways as a sum of consecutive naturals, for example, 2680 + ... + 2751.

2¹⁹⁵⁵¹⁶ is an apocalyptic number.

It is an amenable number.

195516 is an abundant number, since it is smaller than the sum of its proper divisors (298796).

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

195516 is a wasteful number, since it uses less digits than its factorization.

195516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441 (or 5436 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 195516 is about 442.1719122694. The cubic root of 195516 is about 58.0400041101.

The spelling of 195516 in words is "one hundred ninety-five thousand, five hundred sixteen".