195972713 has 4 divisors (see below), whose sum is σ = 196144128. Its totient is φ = 195801300.

The previous prime is 195972703. The next prime is 195972727. The reversal of 195972713 is 317279591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 195972713 - 2⁶ = 195972649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195972703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83981 + ... + 86282.

It is an arithmetic number, because the mean of its divisors is an integer number (49036032).

Almost surely, 2^195972713 is an apocalyptic number.

It is an amenable number.

195972713 is a deficient number, since it is larger than the sum of its proper divisors (171415).

195972713 is a wasteful number, since it uses less digits than its factorization.

195972713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171414.

The product of its digits is 119070, while the sum is 44.

The square root of 195972713 is about 13999.0254303648. The cubic root of 195972713 is about 580.8516155855.

The spelling of 195972713 in words is "one hundred ninety-five million, nine hundred seventy-two thousand, seven hundred thirteen".