195937871 has 2 divisors, whose sum is σ = 195937872. Its totient is φ = 195937870.

The previous prime is 195937867. The next prime is 195937901. The reversal of 195937871 is 178739591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195937871 - 2² = 195937867 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195937271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97968935 + 97968936.

It is an arithmetic number, because the mean of its divisors is an integer number (97968936).

Almost surely, 2^195937871 is an apocalyptic number.

195937871 is a deficient number, since it is larger than the sum of its proper divisors (1).

195937871 is an equidigital number, since it uses as much as digits as its factorization.

195937871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 50.

The square root of 195937871 is about 13997.7809312762. The cubic root of 195937871 is about 580.8171903312.

The spelling of 195937871 in words is "one hundred ninety-five million, nine hundred thirty-seven thousand, eight hundred seventy-one".