199431583 has 12 divisors (see below), whose sum is σ = 216536488. Its totient is φ = 182590560.

The previous prime is 199431569. The next prime is 199431593. The reversal of 199431583 is 385134991.

It is not a de Polignac number, because 199431583 - 2¹³ = 199423391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199431563) 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 11 ways as a sum of consecutive naturals, for example, 288268 + ... + 288958.

Almost surely, 2^199431583 is an apocalyptic number.

199431583 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

199431583 is a deficient number, since it is larger than the sum of its proper divisors (17104905).

199431583 is an equidigital number, since it uses as much as digits as its factorization.

199431583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 853 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 199431583 is about 14122.0247485975. The cubic root of 199431583 is about 584.2490014910.

The spelling of 199431583 in words is "one hundred ninety-nine million, four hundred thirty-one thousand, five hundred eighty-three".