195165513 has 6 divisors (see below), whose sum is σ = 281905754. Its totient is φ = 130110336.

The previous prime is 195165463. The next prime is 195165521. The reversal of 195165513 is 315561591.

195165513 is a `hidden beast` number, since 1 + 95 + 16 + 551 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103063104 + 92102409 = 10152^2 + 9597^2 .

It is not a de Polignac number, because 195165513 - 2⁶ = 195165449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (195165583) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10842520 + ... + 10842537.

Almost surely, 2^195165513 is an apocalyptic number.

It is an amenable number.

195165513 is a deficient number, since it is larger than the sum of its proper divisors (86740241).

195165513 is a wasteful number, since it uses less digits than its factorization.

195165513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21685063 (or 21685060 counting only the distinct ones).

The product of its digits is 20250, while the sum is 36.

The square root of 195165513 is about 13970.1651028182. The cubic root of 195165513 is about 580.0530203215.

The spelling of 195165513 in words is "one hundred ninety-five million, one hundred sixty-five thousand, five hundred thirteen".