196862513 has 2 divisors, whose sum is σ = 196862514. Its totient is φ = 196862512.

The previous prime is 196862489. The next prime is 196862579. The reversal of 196862513 is 315268691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137757169 + 59105344 = 11737^2 + 7688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196862513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (196864513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98431256 + 98431257.

It is an arithmetic number, because the mean of its divisors is an integer number (98431257).

Almost surely, 2^196862513 is an apocalyptic number.

It is an amenable number.

196862513 is a deficient number, since it is larger than the sum of its proper divisors (1).

196862513 is an equidigital number, since it uses as much as digits as its factorization.

196862513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 196862513 is about 14030.7702211960. The cubic root of 196862513 is about 581.7293934136.

The spelling of 196862513 in words is "one hundred ninety-six million, eight hundred sixty-two thousand, five hundred thirteen".