196815013 has 2 divisors, whose sum is σ = 196815014. Its totient is φ = 196815012.

The previous prime is 196814993. The next prime is 196815049. The reversal of 196815013 is 310518691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196476289 + 338724 = 14017^2 + 582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196815013 is a prime.

It is a super-2 number, since 2×196815013² = 77472298684380338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196815013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196815313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98407506 + 98407507.

It is an arithmetic number, because the mean of its divisors is an integer number (98407507).

Almost surely, 2^196815013 is an apocalyptic number.

It is an amenable number.

196815013 is a deficient number, since it is larger than the sum of its proper divisors (1).

196815013 is an equidigital number, since it uses as much as digits as its factorization.

196815013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 196815013 is about 14029.0774108635. The cubic root of 196815013 is about 581.6826020963.

The spelling of 196815013 in words is "one hundred ninety-six million, eight hundred fifteen thousand, thirteen".