195132911 has 2 divisors, whose sum is σ = 195132912. Its totient is φ = 195132910.

The previous prime is 195132893. The next prime is 195132913. The reversal of 195132911 is 119231591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195132911 - 2²⁶ = 128024047 is a prime.

Together with 195132913, 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 (195132913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97566455 + 97566456.

It is an arithmetic number, because the mean of its divisors is an integer number (97566456).

Almost surely, 2^195132911 is an apocalyptic number.

195132911 is a deficient number, since it is larger than the sum of its proper divisors (1).

195132911 is an equidigital number, since it uses as much as digits as its factorization.

195132911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 32.

The square root of 195132911 is about 13968.9982103227. The cubic root of 195132911 is about 580.0207196324.

The spelling of 195132911 in words is "one hundred ninety-five million, one hundred thirty-two thousand, nine hundred eleven".