199773135 has 40 divisors (see below), whose sum is σ = 361664160. Its totient is φ = 105489216.

The previous prime is 199773113. The next prime is 199773143. The reversal of 199773135 is 531377991.

It is not a de Polignac number, because 199773135 - 2⁶ = 199773071 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 an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 39321 + ... + 44109.

It is an arithmetic number, because the mean of its divisors is an integer number (9041604).

Almost surely, 2^199773135 is an apocalyptic number.

199773135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199773135 is a deficient number, since it is larger than the sum of its proper divisors (161891025).

199773135 is a wasteful number, since it uses less digits than its factorization.

199773135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909 (or 4900 counting only the distinct ones).

The product of its digits is 178605, while the sum is 45.

The square root of 199773135 is about 14134.1124588706. The cubic root of 199773135 is about 584.5823448881.

The spelling of 199773135 in words is "one hundred ninety-nine million, seven hundred seventy-three thousand, one hundred thirty-five".