196365149 has 2 divisors, whose sum is σ = 196365150. Its totient is φ = 196365148.

The previous prime is 196365137. The next prime is 196365167. The reversal of 196365149 is 941563691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134977924 + 61387225 = 11618^2 + 7835^2 .

It is a cyclic number.

It is not a de Polignac number, because 196365149 - 2¹⁶ = 196299613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196365049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98182574 + 98182575.

It is an arithmetic number, because the mean of its divisors is an integer number (98182575).

Almost surely, 2^196365149 is an apocalyptic number.

It is an amenable number.

196365149 is a deficient number, since it is larger than the sum of its proper divisors (1).

196365149 is an equidigital number, since it uses as much as digits as its factorization.

196365149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 196365149 is about 14013.0349674865. The cubic root of 196365149 is about 581.2390761581.

The spelling of 196365149 in words is "one hundred ninety-six million, three hundred sixty-five thousand, one hundred forty-nine".