195517 has 16 divisors (see below), whose sum is σ = 248832. Its totient is φ = 149760.

The previous prime is 195511. The next prime is 195527. The reversal of 195517 is 715591.

It is a cyclic number.

It is not a de Polignac number, because 195517 - 2⁷ = 195389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195511) 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, 3663 + ... + 3715.

It is an arithmetic number, because the mean of its divisors is an integer number (15552).

2¹⁹⁵⁵¹⁷ is an apocalyptic number.

195517 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

195517 is a deficient number, since it is larger than the sum of its proper divisors (53315).

195517 is a wasteful number, since it uses less digits than its factorization.

195517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108.

The product of its digits is 1575, while the sum is 28.

The square root of 195517 is about 442.1730430499. The cubic root of 195517 is about 58.0401030617.

The spelling of 195517 in words is "one hundred ninety-five thousand, five hundred seventeen".