196813031 has 2 divisors, whose sum is σ = 196813032. Its totient is φ = 196813030.

The previous prime is 196813013. The next prime is 196813033. The reversal of 196813031 is 130318691.

Together with previous prime (196813013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (130318691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196813031 - 2²⁶ = 129704167 is a prime.

It is a super-2 number, since 2×196813031² = 77470738342813922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 196813033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196813033) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98406515 + 98406516.

It is an arithmetic number, because the mean of its divisors is an integer number (98406516).

Almost surely, 2^196813031 is an apocalyptic number.

196813031 is a deficient number, since it is larger than the sum of its proper divisors (1).

196813031 is an equidigital number, since it uses as much as digits as its factorization.

196813031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 196813031 is about 14029.0067716856. The cubic root of 196813031 is about 581.6806495034.

The spelling of 196813031 in words is "one hundred ninety-six million, eight hundred thirteen thousand, thirty-one".