196506319 has 4 divisors (see below), whose sum is σ = 205050096. Its totient is φ = 187962544.

The previous prime is 196506301. The next prime is 196506329. The reversal of 196506319 is 913605691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913605691 = 79 ⋅11564629.

It is a cyclic number.

It is not a de Polignac number, because 196506319 - 2⁵ = 196506287 is a prime.

It is a super-2 number, since 2×196506319² = 77229466813859522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196506329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271854 + ... + 4271899.

It is an arithmetic number, because the mean of its divisors is an integer number (51262524).

Almost surely, 2^196506319 is an apocalyptic number.

196506319 is a deficient number, since it is larger than the sum of its proper divisors (8543777).

196506319 is an equidigital number, since it uses as much as digits as its factorization.

196506319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8543776.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 196506319 is about 14018.0711583299. The cubic root of 196506319 is about 581.3783301032.

The spelling of 196506319 in words is "one hundred ninety-six million, five hundred six thousand, three hundred nineteen".