199013513 has 2 divisors, whose sum is σ = 199013514. Its totient is φ = 199013512.

The previous prime is 199013501. The next prime is 199013519. The reversal of 199013513 is 315310991.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194965369 + 4048144 = 13963^2 + 2012^2 .

It is a cyclic number.

It is not a de Polignac number, because 199013513 - 2⁶ = 199013449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199013513.

It is not a weakly prime, because it can be changed into another prime (199013519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99506756 + 99506757.

It is an arithmetic number, because the mean of its divisors is an integer number (99506757).

Almost surely, 2^199013513 is an apocalyptic number.

It is an amenable number.

199013513 is a deficient number, since it is larger than the sum of its proper divisors (1).

199013513 is an equidigital number, since it uses as much as digits as its factorization.

199013513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 199013513 is about 14107.2149271215. The cubic root of 199013513 is about 583.8404606191.

The spelling of 199013513 in words is "one hundred ninety-nine million, thirteen thousand, five hundred thirteen".