195834731 has 2 divisors, whose sum is σ = 195834732. Its totient is φ = 195834730.

The previous prime is 195834707. The next prime is 195834733. The reversal of 195834731 is 137438591.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195834731 is a prime.

It is a super-2 number, since 2×195834731² = 76702483731684722, which contains 22 as substring.

Together with 195834733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195834733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97917365 + 97917366.

It is an arithmetic number, because the mean of its divisors is an integer number (97917366).

Almost surely, 2^195834731 is an apocalyptic number.

195834731 is a deficient number, since it is larger than the sum of its proper divisors (1).

195834731 is an equidigital number, since it uses as much as digits as its factorization.

195834731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 195834731 is about 13994.0962909364. The cubic root of 195834731 is about 580.7152600628.

The spelling of 195834731 in words is "one hundred ninety-five million, eight hundred thirty-four thousand, seven hundred thirty-one".