195188601 has 4 divisors (see below), whose sum is σ = 260251472. Its totient is φ = 130125732.

The previous prime is 195188599. The next prime is 195188627. The reversal of 195188601 is 106881591.

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 not a de Polignac number, because 195188601 - 2¹ = 195188599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195188601.

It is not an unprimeable number, because it can be changed into a prime (195188681) 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, 32531431 + ... + 32531436.

It is an arithmetic number, because the mean of its divisors is an integer number (65062868).

Almost surely, 2^195188601 is an apocalyptic number.

It is an amenable number.

195188601 is a deficient number, since it is larger than the sum of its proper divisors (65062871).

195188601 is an equidigital number, since it uses as much as digits as its factorization.

195188601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65062870.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 195188601 is about 13970.9914107768. The cubic root of 195188601 is about 580.0758927642.

The spelling of 195188601 in words is "one hundred ninety-five million, one hundred eighty-eight thousand, six hundred one".