196557353 has 2 divisors, whose sum is σ = 196557354. Its totient is φ = 196557352.

The previous prime is 196557313. The next prime is 196557371. The reversal of 196557353 is 353755691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196084009 + 473344 = 14003^2 + 688^2 .

It is a cyclic number.

It is not a de Polignac number, because 196557353 - 2⁶ = 196557289 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (196557313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98278676 + 98278677.

It is an arithmetic number, because the mean of its divisors is an integer number (98278677).

Almost surely, 2^196557353 is an apocalyptic number.

It is an amenable number.

196557353 is a deficient number, since it is larger than the sum of its proper divisors (1).

196557353 is an equidigital number, since it uses as much as digits as its factorization.

196557353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 425250, while the sum is 44.

The square root of 196557353 is about 14019.8913333877. The cubic root of 196557353 is about 581.4286550218.

The spelling of 196557353 in words is "one hundred ninety-six million, five hundred fifty-seven thousand, three hundred fifty-three".