196540177 has 2 divisors, whose sum is σ = 196540178. Its totient is φ = 196540176.

The previous prime is 196540147. The next prime is 196540181. The reversal of 196540177 is 771045691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100480576 + 96059601 = 10024^2 + 9801^2 .

It is a cyclic number.

It is not a de Polignac number, because 196540177 - 2¹¹ = 196538129 is a prime.

It is not a weakly prime, because it can be changed into another prime (196540147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98270088 + 98270089.

It is an arithmetic number, because the mean of its divisors is an integer number (98270089).

Almost surely, 2^196540177 is an apocalyptic number.

It is an amenable number.

196540177 is a deficient number, since it is larger than the sum of its proper divisors (1).

196540177 is an equidigital number, since it uses as much as digits as its factorization.

196540177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 196540177 is about 14019.2787617623. The cubic root of 196540177 is about 581.4117186428.

The spelling of 196540177 in words is "one hundred ninety-six million, five hundred forty thousand, one hundred seventy-seven".