195133893 has 8 divisors (see below), whose sum is σ = 267210528. Its totient is φ = 126573264.

The previous prime is 195133889. The next prime is 195133901. The reversal of 195133893 is 398331591.

It is a happy number.

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

It is not a de Polignac number, because 195133893 - 2² = 195133889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195133823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878871 + ... + 879092.

It is an arithmetic number, because the mean of its divisors is an integer number (33401316).

Almost surely, 2^195133893 is an apocalyptic number.

It is an amenable number.

195133893 is a deficient number, since it is larger than the sum of its proper divisors (72076635).

195133893 is a wasteful number, since it uses less digits than its factorization.

195133893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758003.

The product of its digits is 87480, while the sum is 42.

The square root of 195133893 is about 13969.0333595421. The cubic root of 195133893 is about 580.0216926092.

The spelling of 195133893 in words is "one hundred ninety-five million, one hundred thirty-three thousand, eight hundred ninety-three".