195192047 has 2 divisors, whose sum is σ = 195192048. Its totient is φ = 195192046.

The previous prime is 195191989. The next prime is 195192061. The reversal of 195192047 is 740291591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195192047 - 2⁸ = 195191791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195192047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195192097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97596023 + 97596024.

It is an arithmetic number, because the mean of its divisors is an integer number (97596024).

Almost surely, 2^195192047 is an apocalyptic number.

195192047 is a deficient number, since it is larger than the sum of its proper divisors (1).

195192047 is an equidigital number, since it uses as much as digits as its factorization.

195192047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 195192047 is about 13971.1147371997. The cubic root of 195192047 is about 580.0793064365.

The spelling of 195192047 in words is "one hundred ninety-five million, one hundred ninety-two thousand, forty-seven".