196115797 has 2 divisors, whose sum is σ = 196115798. Its totient is φ = 196115796.

The previous prime is 196115771. The next prime is 196115807. The reversal of 196115797 is 797511691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158734801 + 37380996 = 12599^2 + 6114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196115797 is a prime.

It is a super-2 number, since 2×196115797² = 76922811665890418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196115707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98057898 + 98057899.

It is an arithmetic number, because the mean of its divisors is an integer number (98057899).

Almost surely, 2^196115797 is an apocalyptic number.

It is an amenable number.

196115797 is a deficient number, since it is larger than the sum of its proper divisors (1).

196115797 is an equidigital number, since it uses as much as digits as its factorization.

196115797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 46.

The square root of 196115797 is about 14004.1349964930. The cubic root of 196115797 is about 580.9929453869.

The spelling of 196115797 in words is "one hundred ninety-six million, one hundred fifteen thousand, seven hundred ninety-seven".