199613307 has 4 divisors (see below), whose sum is σ = 266151080. Its totient is φ = 133075536.

The previous prime is 199613291. The next prime is 199613327. The reversal of 199613307 is 703316991.

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

It is not a de Polignac number, because 199613307 - 2⁴ = 199613291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199613327) 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, 33268882 + ... + 33268887.

It is an arithmetic number, because the mean of its divisors is an integer number (66537770).

Almost surely, 2^199613307 is an apocalyptic number.

199613307 is a deficient number, since it is larger than the sum of its proper divisors (66537773).

199613307 is an equidigital number, since it uses as much as digits as its factorization.

199613307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66537772.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 199613307 is about 14128.4573467877. The cubic root of 199613307 is about 584.4264054105.

The spelling of 199613307 in words is "one hundred ninety-nine million, six hundred thirteen thousand, three hundred seven".