196522819 has 2 divisors, whose sum is σ = 196522820. Its totient is φ = 196522818.

The previous prime is 196522813. The next prime is 196522831. The reversal of 196522819 is 918225691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196522819 - 2³ = 196522811 is a prime.

It is a super-4 number, since 4×196522819⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (196522811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98261409 + 98261410.

It is an arithmetic number, because the mean of its divisors is an integer number (98261410).

Almost surely, 2^196522819 is an apocalyptic number.

196522819 is a deficient number, since it is larger than the sum of its proper divisors (1).

196522819 is an equidigital number, since it uses as much as digits as its factorization.

196522819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 196522819 is about 14018.6596720229. The cubic root of 196522819 is about 581.3946018004.

The spelling of 196522819 in words is "one hundred ninety-six million, five hundred twenty-two thousand, eight hundred nineteen".