199995113 has 2 divisors, whose sum is σ = 199995114. Its totient is φ = 199995112.

The previous prime is 199995109. The next prime is 199995119. The reversal of 199995113 is 311599991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119946304 + 80048809 = 10952^2 + 8947^2 .

It is a cyclic number.

It is not a de Polignac number, because 199995113 - 2² = 199995109 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199995119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99997556 + 99997557.

It is an arithmetic number, because the mean of its divisors is an integer number (99997557).

Almost surely, 2^199995113 is an apocalyptic number.

It is an amenable number.

199995113 is a deficient number, since it is larger than the sum of its proper divisors (1).

199995113 is an equidigital number, since it uses as much as digits as its factorization.

199995113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98415, while the sum is 47.

The square root of 199995113 is about 14141.9628411335. The cubic root of 199995113 is about 584.7987843789.

The spelling of 199995113 in words is "one hundred ninety-nine million, nine hundred ninety-five thousand, one hundred thirteen".