195172153 has 12 divisors (see below), whose sum is σ = 219098880. Its totient is φ = 173649080.

The previous prime is 195172147. The next prime is 195172169. The reversal of 195172153 is 351271591.

195172153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-195172153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195172183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11473 + ... + 22846.

It is an arithmetic number, because the mean of its divisors is an integer number (18258240).

Almost surely, 2^195172153 is an apocalyptic number.

It is an amenable number.

195172153 is a deficient number, since it is larger than the sum of its proper divisors (23926727).

195172153 is a wasteful number, since it uses less digits than its factorization.

195172153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34388 (or 34377 counting only the distinct ones).

The product of its digits is 9450, while the sum is 34.

The square root of 195172153 is about 13970.4027500999. The cubic root of 195172153 is about 580.0595985130.

The spelling of 195172153 in words is "one hundred ninety-five million, one hundred seventy-two thousand, one hundred fifty-three".