199967113 has 2 divisors, whose sum is σ = 199967114. Its totient is φ = 199967112.

The previous prime is 199967111. The next prime is 199967123. The reversal of 199967113 is 311769991.

199967113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158080329 + 41886784 = 12573^2 + 6472^2 .

It is a cyclic number.

It is not a de Polignac number, because 199967113 - 2¹ = 199967111 is a prime.

Together with 199967111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (199967111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99983556 + 99983557.

It is an arithmetic number, because the mean of its divisors is an integer number (99983557).

Almost surely, 2^199967113 is an apocalyptic number.

It is an amenable number.

199967113 is a deficient number, since it is larger than the sum of its proper divisors (1).

199967113 is an equidigital number, since it uses as much as digits as its factorization.

199967113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91854, while the sum is 46.

The square root of 199967113 is about 14140.9728448930. The cubic root of 199967113 is about 584.7714918284.

The spelling of 199967113 in words is "one hundred ninety-nine million, nine hundred sixty-seven thousand, one hundred thirteen".