195965 has 16 divisors (see below), whose sum is σ = 293760. Its totient is φ = 121920.

The previous prime is 195931. The next prime is 195967. The reversal of 195965 is 569591.

It is not a de Polignac number, because 195965 - 2⁸ = 195709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195967) 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, 131 + ... + 639.

It is an arithmetic number, because the mean of its divisors is an integer number (18360).

2¹⁹⁵⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

195965 is a deficient number, since it is larger than the sum of its proper divisors (97795).

195965 is a wasteful number, since it uses less digits than its factorization.

195965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its digits is 12150, while the sum is 35.

The square root of 195965 is about 442.6793421880. The cubic root of 195965 is about 58.0843995193.

The spelling of 195965 in words is "one hundred ninety-five thousand, nine hundred sixty-five".