196499519 has 2 divisors, whose sum is σ = 196499520. Its totient is φ = 196499518.

The previous prime is 196499509. The next prime is 196499521. The reversal of 196499519 is 915994691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196499519 - 2²⁰ = 195450943 is a prime.

It is a super-2 number, since 2×196499519² = 77224121934462722, which contains 22 as substring.

Together with 196499521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196499509) 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, 98249759 + 98249760.

It is an arithmetic number, because the mean of its divisors is an integer number (98249760).

Almost surely, 2^196499519 is an apocalyptic number.

196499519 is a deficient number, since it is larger than the sum of its proper divisors (1).

196499519 is an equidigital number, since it uses as much as digits as its factorization.

196499519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 787320, while the sum is 53.

The square root of 196499519 is about 14017.8286121639. The cubic root of 196499519 is about 581.3716239265.

The spelling of 196499519 in words is "one hundred ninety-six million, four hundred ninety-nine thousand, five hundred nineteen".