196662101 has 2 divisors, whose sum is σ = 196662102. Its totient is φ = 196662100.

The previous prime is 196662071. The next prime is 196662127. The reversal of 196662101 is 101266691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105555076 + 91107025 = 10274^2 + 9545^2 .

It is an emirp because it is prime and its reverse (101266691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196662101 - 2²² = 192467797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196662161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98331050 + 98331051.

It is an arithmetic number, because the mean of its divisors is an integer number (98331051).

Almost surely, 2^196662101 is an apocalyptic number.

It is an amenable number.

196662101 is a deficient number, since it is larger than the sum of its proper divisors (1).

196662101 is an equidigital number, since it uses as much as digits as its factorization.

196662101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 196662101 is about 14023.6265281132. The cubic root of 196662101 is about 581.5319203407.

The spelling of 196662101 in words is "one hundred ninety-six million, six hundred sixty-two thousand, one hundred one".