199090929 has 8 divisors (see below), whose sum is σ = 269091232. Its totient is φ = 130908960.

The previous prime is 199090907. The next prime is 199090937. The reversal of 199090929 is 929090991.

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

It is not a de Polignac number, because 199090929 - 2²⁴ = 182313713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199090939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454327 + ... + 454764.

It is an arithmetic number, because the mean of its divisors is an integer number (33636404).

Almost surely, 2^199090929 is an apocalyptic number.

It is an amenable number.

199090929 is a deficient number, since it is larger than the sum of its proper divisors (70000303).

199090929 is an equidigital number, since it uses as much as digits as its factorization.

199090929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909167.

The product of its (nonzero) digits is 118098, while the sum is 48.

The square root of 199090929 is about 14109.9585045456. The cubic root of 199090929 is about 583.9161552004.

The spelling of 199090929 in words is "one hundred ninety-nine million, ninety thousand, nine hundred twenty-nine".