196564351 has 2 divisors, whose sum is σ = 196564352. Its totient is φ = 196564350.

The previous prime is 196564343. The next prime is 196564411. The reversal of 196564351 is 153465691.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196564351 - 2³ = 196564343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196564301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98282175 + 98282176.

It is an arithmetic number, because the mean of its divisors is an integer number (98282176).

Almost surely, 2^196564351 is an apocalyptic number.

196564351 is a deficient number, since it is larger than the sum of its proper divisors (1).

196564351 is an equidigital number, since it uses as much as digits as its factorization.

196564351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 196564351 is about 14020.1409051407. The cubic root of 196564351 is about 581.4355551104.

The spelling of 196564351 in words is "one hundred ninety-six million, five hundred sixty-four thousand, three hundred fifty-one".