196221313 has 2 divisors, whose sum is σ = 196221314. Its totient is φ = 196221312.

The previous prime is 196221301. The next prime is 196221331. The reversal of 196221313 is 313122691.

Together with next prime (196221331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104693824 + 91527489 = 10232^2 + 9567^2 .

It is a cyclic number.

It is not a de Polignac number, because 196221313 - 2⁵ = 196221281 is a prime.

It is a super-3 number, since 3×196221313³ (a number of 26 digits) contains 333 as substring.

It is equal to p_10881415 and since 196221313 and 10881415 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (196221353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98110656 + 98110657.

It is an arithmetic number, because the mean of its divisors is an integer number (98110657).

Almost surely, 2^196221313 is an apocalyptic number.

It is an amenable number.

196221313 is a deficient number, since it is larger than the sum of its proper divisors (1).

196221313 is an equidigital number, since it uses as much as digits as its factorization.

196221313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 196221313 is about 14007.9018057666. The cubic root of 196221313 is about 581.0971237370.

The spelling of 196221313 in words is "one hundred ninety-six million, two hundred twenty-one thousand, three hundred thirteen".