199850031 has 16 divisors (see below), whose sum is σ = 303297120. Its totient is φ = 129983040.

The previous prime is 199850023. The next prime is 199850033. The reversal of 199850031 is 130058991.

It is a happy number.

It is not a de Polignac number, because 199850031 - 2³ = 199850023 is a prime.

It is a super-2 number, since 2×199850031² = 79880069781401922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199850033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89160 + ... + 91373.

It is an arithmetic number, because the mean of its divisors is an integer number (18956070).

Almost surely, 2^199850031 is an apocalyptic number.

199850031 is a deficient number, since it is larger than the sum of its proper divisors (103447089).

199850031 is a wasteful number, since it uses less digits than its factorization.

199850031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180583 (or 180577 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 199850031 is about 14136.8324245568. The cubic root of 199850031 is about 584.6573404202.

The spelling of 199850031 in words is "one hundred ninety-nine million, eight hundred fifty thousand, thirty-one".