196557313 has 2 divisors, whose sum is σ = 196557314. Its totient is φ = 196557312.

The previous prime is 196557289. The next prime is 196557353. The reversal of 196557313 is 313755691.

It is a happy number.

196557313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (196557353) can be obtained adding 196557313 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139901584 + 56655729 = 11828^2 + 7527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196557313 is a prime.

It is not a weakly prime, because it can be changed into another prime (196557353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98278656 + 98278657.

It is an arithmetic number, because the mean of its divisors is an integer number (98278657).

Almost surely, 2^196557313 is an apocalyptic number.

It is an amenable number.

196557313 is a deficient number, since it is larger than the sum of its proper divisors (1).

196557313 is an equidigital number, since it uses as much as digits as its factorization.

196557313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 40.

The square root of 196557313 is about 14019.8899068431. The cubic root of 196557313 is about 581.4286155810.

The spelling of 196557313 in words is "one hundred ninety-six million, five hundred fifty-seven thousand, three hundred thirteen".