199545713 has 4 divisors (see below), whose sum is σ = 202356288. Its totient is φ = 196735140.

The previous prime is 199545707. The next prime is 199545721. The reversal of 199545713 is 317545991.

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.

It is a cyclic number.

It is not a de Polignac number, because 199545713 - 2⁶ = 199545649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199545763) 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, 1405181 + ... + 1405322.

It is an arithmetic number, because the mean of its divisors is an integer number (50589072).

Almost surely, 2^199545713 is an apocalyptic number.

It is an amenable number.

199545713 is a deficient number, since it is larger than the sum of its proper divisors (2810575).

199545713 is an equidigital number, since it uses as much as digits as its factorization.

199545713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810574.

The product of its digits is 170100, while the sum is 44.

The square root of 199545713 is about 14126.0650217957. The cubic root of 199545713 is about 584.3604308873.

The spelling of 199545713 in words is "one hundred ninety-nine million, five hundred forty-five thousand, seven hundred thirteen".