199995902 has 8 divisors (see below), whose sum is σ = 313037136. Its totient is φ = 95650192.

The previous prime is 199995889. The next prime is 199995923. The reversal of 199995902 is 209599991.

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

It is a congruent number.

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, 2173823 + ... + 2173914.

It is an arithmetic number, because the mean of its divisors is an integer number (39129642).

Almost surely, 2^199995902 is an apocalyptic number.

199995902 is a deficient number, since it is larger than the sum of its proper divisors (113041234).

199995902 is a wasteful number, since it uses less digits than its factorization.

199995902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347762.

The product of its (nonzero) digits is 590490, while the sum is 53.

The square root of 199995902 is about 14141.9907368093. The cubic root of 199995902 is about 584.7995534071.

The spelling of 199995902 in words is "one hundred ninety-nine million, nine hundred ninety-five thousand, nine hundred two".