199913193 has 24 divisors (see below), whose sum is σ = 308516000. Its totient is φ = 124369344.

The previous prime is 199913173. The next prime is 199913221. The reversal of 199913193 is 391319991.

It is not a de Polignac number, because 199913193 - 2¹⁰ = 199912169 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199913123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2733 + ... + 20181.

Almost surely, 2^199913193 is an apocalyptic number.

It is an amenable number.

199913193 is a deficient number, since it is larger than the sum of its proper divisors (108602807).

199913193 is a wasteful number, since it uses less digits than its factorization.

199913193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17541 (or 17538 counting only the distinct ones).

The product of its digits is 59049, while the sum is 45.

The square root of 199913193 is about 14139.0661997177. The cubic root of 199913193 is about 584.7189269960.

The spelling of 199913193 in words is "one hundred ninety-nine million, nine hundred thirteen thousand, one hundred ninety-three".