196868131 has 2 divisors, whose sum is σ = 196868132. Its totient is φ = 196868130.

The previous prime is 196868099. The next prime is 196868137. The reversal of 196868131 is 131868691.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (131868691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196868131 - 2⁵ = 196868099 is a prime.

It is a super-2 number, since 2×196868131² = 77514122006866322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196868137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98434065 + 98434066.

It is an arithmetic number, because the mean of its divisors is an integer number (98434066).

Almost surely, 2^196868131 is an apocalyptic number.

196868131 is a deficient number, since it is larger than the sum of its proper divisors (1).

196868131 is an equidigital number, since it uses as much as digits as its factorization.

196868131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 43.

The square root of 196868131 is about 14030.9704226044. The cubic root of 196868131 is about 581.7349270973.

The spelling of 196868131 in words is "one hundred ninety-six million, eight hundred sixty-eight thousand, one hundred thirty-one".