195172442 has 8 divisors (see below), whose sum is σ = 299567136. Its totient is φ = 95316732.

The previous prime is 195172441. The next prime is 195172459. The reversal of 195172442 is 244271591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (195172441) 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, 1134638 + ... + 1134809.

It is an arithmetic number, because the mean of its divisors is an integer number (37445892).

Almost surely, 2^195172442 is an apocalyptic number.

195172442 is a deficient number, since it is larger than the sum of its proper divisors (104394694).

195172442 is a wasteful number, since it uses less digits than its factorization.

195172442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269492.

The product of its digits is 20160, while the sum is 35.

The square root of 195172442 is about 13970.4130933913. The cubic root of 195172442 is about 580.0598848195.

The spelling of 195172442 in words is "one hundred ninety-five million, one hundred seventy-two thousand, four hundred forty-two".