196812949 has 2 divisors, whose sum is σ = 196812950. Its totient is φ = 196812948.

The previous prime is 196812881. The next prime is 196812971. The reversal of 196812949 is 949218691.

It is a happy number.

196812949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165251025 + 31561924 = 12855^2 + 5618^2 .

It is a cyclic number.

It is not a de Polignac number, because 196812949 - 2¹³ = 196804757 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 (196812989) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98406474 + 98406475.

It is an arithmetic number, because the mean of its divisors is an integer number (98406475).

Almost surely, 2^196812949 is an apocalyptic number.

It is an amenable number.

196812949 is a deficient number, since it is larger than the sum of its proper divisors (1).

196812949 is an equidigital number, since it uses as much as digits as its factorization.

196812949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 49.

The square root of 196812949 is about 14029.0038491690. The cubic root of 196812949 is about 581.6805687198.

The spelling of 196812949 in words is "one hundred ninety-six million, eight hundred twelve thousand, nine hundred forty-nine".