196342819 has 2 divisors, whose sum is σ = 196342820. Its totient is φ = 196342818.

The previous prime is 196342807. The next prime is 196342879. The reversal of 196342819 is 918243691.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196342819 - 2⁷ = 196342691 is a prime.

It is a super-2 number, since 2×196342819² = 77101005145733522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196342879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98171409 + 98171410.

It is an arithmetic number, because the mean of its divisors is an integer number (98171410).

Almost surely, 2^196342819 is an apocalyptic number.

196342819 is a deficient number, since it is larger than the sum of its proper divisors (1).

196342819 is an equidigital number, since it uses as much as digits as its factorization.

196342819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The square root of 196342819 is about 14012.2381866710. The cubic root of 196342819 is about 581.2170431231.

The spelling of 196342819 in words is "one hundred ninety-six million, three hundred forty-two thousand, eight hundred nineteen".