196708261 has 2 divisors, whose sum is σ = 196708262. Its totient is φ = 196708260.

The previous prime is 196708231. The next prime is 196708271. The reversal of 196708261 is 162807691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196168036 + 540225 = 14006^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 196708261 - 2⁵ = 196708229 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 (196708231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98354130 + 98354131.

It is an arithmetic number, because the mean of its divisors is an integer number (98354131).

Almost surely, 2^196708261 is an apocalyptic number.

It is an amenable number.

196708261 is a deficient number, since it is larger than the sum of its proper divisors (1).

196708261 is an equidigital number, since it uses as much as digits as its factorization.

196708261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 196708261 is about 14025.2722255220. The cubic root of 196708261 is about 581.5774153181.

The spelling of 196708261 in words is "one hundred ninety-six million, seven hundred eight thousand, two hundred sixty-one".