199983015 has 24 divisors (see below), whose sum is σ = 357821568. Its totient is φ = 103216320.

The previous prime is 199983013. The next prime is 199983023. The reversal of 199983015 is 510389991.

It is not a de Polignac number, because 199983015 - 2¹ = 199983013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199983013) 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, 70284 + ... + 73073.

It is an arithmetic number, because the mean of its divisors is an integer number (14909232).

Almost surely, 2^199983015 is an apocalyptic number.

199983015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199983015 is a deficient number, since it is larger than the sum of its proper divisors (157838553).

199983015 is a wasteful number, since it uses less digits than its factorization.

199983015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143399 (or 143396 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 199983015 is about 14141.5351005469. The cubic root of 199983015 is about 584.7869923602.

The spelling of 199983015 in words is "one hundred ninety-nine million, nine hundred eighty-three thousand, fifteen".