199207313 has 4 divisors (see below), whose sum is σ = 199235568. Its totient is φ = 199179060.

The previous prime is 199207303. The next prime is 199207321. The reversal of 199207313 is 313702991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 199207313 - 2¹² = 199203217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199207303) 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 3 ways as a sum of consecutive naturals, for example, 6158 + ... + 20888.

It is an arithmetic number, because the mean of its divisors is an integer number (49808892).

Almost surely, 2^199207313 is an apocalyptic number.

It is an amenable number.

199207313 is a deficient number, since it is larger than the sum of its proper divisors (28255).

199207313 is a wasteful number, since it uses less digits than its factorization.

199207313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28254.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 199207313 is about 14114.0820813824. The cubic root of 199207313 is about 584.0299143759.

The spelling of 199207313 in words is "one hundred ninety-nine million, two hundred seven thousand, three hundred thirteen".