199435513 has 4 divisors (see below), whose sum is σ = 204825700. Its totient is φ = 194045328.

The previous prime is 199435487. The next prime is 199435519. The reversal of 199435513 is 315534991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70090384 + 129345129 = 8372^2 + 11373^2 .

It is a cyclic number.

It is not a de Polignac number, because 199435513 - 2²⁵ = 165881081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199435519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695038 + ... + 2695111.

It is an arithmetic number, because the mean of its divisors is an integer number (51206425).

Almost surely, 2^199435513 is an apocalyptic number.

It is an amenable number.

199435513 is a deficient number, since it is larger than the sum of its proper divisors (5390187).

199435513 is an equidigital number, since it uses as much as digits as its factorization.

199435513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390186.

The product of its digits is 72900, while the sum is 40.

The square root of 199435513 is about 14122.1638922652. The cubic root of 199435513 is about 584.2528392039.

The spelling of 199435513 in words is "one hundred ninety-nine million, four hundred thirty-five thousand, five hundred thirteen".