195859994 has 8 divisors (see below), whose sum is σ = 320498208. Its totient is φ = 89027260.

The previous prime is 195859987. The next prime is 195860003. The reversal of 195859994 is 499958591.

195859994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×195859994² = 76722274499360072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4451342 + ... + 4451385.

It is an arithmetic number, because the mean of its divisors is an integer number (40062276).

Almost surely, 2^195859994 is an apocalyptic number.

195859994 is a deficient number, since it is larger than the sum of its proper divisors (124638214).

195859994 is a wasteful number, since it uses less digits than its factorization.

195859994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902740.

The product of its digits is 5248800, while the sum is 59.

The square root of 195859994 is about 13994.9988924615. The cubic root of 195859994 is about 580.7402300613.

The spelling of 195859994 in words is "one hundred ninety-five million, eight hundred fifty-nine thousand, nine hundred ninety-four".