199913194 has 32 divisors (see below), whose sum is σ = 340179840. Its totient is φ = 87417792.

The previous prime is 199913173. The next prime is 199913221. The reversal of 199913194 is 491319991.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63649 + ... + 66715.

It is an arithmetic number, because the mean of its divisors is an integer number (10630620).

Almost surely, 2^199913194 is an apocalyptic number.

199913194 is a deficient number, since it is larger than the sum of its proper divisors (140266646).

199913194 is a wasteful number, since it uses less digits than its factorization.

199913194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214.

The product of its digits is 78732, while the sum is 46.

The square root of 199913194 is about 14139.0662350807. The cubic root of 199913194 is about 584.7189279710.

The spelling of 199913194 in words is "one hundred ninety-nine million, nine hundred thirteen thousand, one hundred ninety-four".