199919134 has 8 divisors (see below), whose sum is σ = 302970528. Its totient is φ = 98928960.

The previous prime is 199919129. The next prime is 199919149. The reversal of 199919134 is 431919991.

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, 515062 + ... + 515449.

It is an arithmetic number, because the mean of its divisors is an integer number (37871316).

Almost surely, 2^199919134 is an apocalyptic number.

199919134 is a deficient number, since it is larger than the sum of its proper divisors (103051394).

199919134 is a wasteful number, since it uses less digits than its factorization.

199919134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030610.

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

The square root of 199919134 is about 14139.2762898247. The cubic root of 199919134 is about 584.7247191446.

The spelling of 199919134 in words is "one hundred ninety-nine million, nine hundred nineteen thousand, one hundred thirty-four".