196132739921 has 2 divisors, whose sum is σ = 196132739922. Its totient is φ = 196132739920.

The previous prime is 196132739911. The next prime is 196132739951. The reversal of 196132739921 is 129937231691.

196132739921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166639486225 + 29493253696 = 408215^2 + 171736^2 .

It is an emirp because it is prime and its reverse (129937231691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196132739921 - 2²⁶ = 196065631057 is a prime.

It is not a weakly prime, because it can be changed into another prime (196132739911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98066369960 + 98066369961.

It is an arithmetic number, because the mean of its divisors is an integer number (98066369961).

Almost surely, 2^196132739921 is an apocalyptic number.

It is an amenable number.

196132739921 is a deficient number, since it is larger than the sum of its proper divisors (1).

196132739921 is an equidigital number, since it uses as much as digits as its factorization.

196132739921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 53.

The spelling of 196132739921 in words is "one hundred ninety-six billion, one hundred thirty-two million, seven hundred thirty-nine thousand, nine hundred twenty-one".