196795139 has 2 divisors, whose sum is σ = 196795140. Its totient is φ = 196795138.

The previous prime is 196795117. The next prime is 196795163. The reversal of 196795139 is 931597691.

It is a weak prime.

It is an emirp because it is prime and its reverse (931597691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196795139 - 2²⁰ = 195746563 is a prime.

It is not a weakly prime, because it can be changed into another prime (196795169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98397569 + 98397570.

It is an arithmetic number, because the mean of its divisors is an integer number (98397570).

Almost surely, 2^196795139 is an apocalyptic number.

196795139 is a deficient number, since it is larger than the sum of its proper divisors (1).

196795139 is an equidigital number, since it uses as much as digits as its factorization.

196795139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 459270, while the sum is 50.

The square root of 196795139 is about 14028.3690784068. The cubic root of 196795139 is about 581.6630223753.

The spelling of 196795139 in words is "one hundred ninety-six million, seven hundred ninety-five thousand, one hundred thirty-nine".