195225571 has 2 divisors, whose sum is σ = 195225572. Its totient is φ = 195225570.

The previous prime is 195225557. The next prime is 195225577. The reversal of 195225571 is 175522591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195225571 - 2⁵ = 195225539 is a prime.

It is a super-2 number, since 2×195225571² = 76226047144552082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195225571.

It is not a weakly prime, because it can be changed into another prime (195225577) 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, 97612785 + 97612786.

It is an arithmetic number, because the mean of its divisors is an integer number (97612786).

Almost surely, 2^195225571 is an apocalyptic number.

195225571 is a deficient number, since it is larger than the sum of its proper divisors (1).

195225571 is an equidigital number, since it uses as much as digits as its factorization.

195225571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 37.

The square root of 195225571 is about 13972.3144467908. The cubic root of 195225571 is about 580.1125138439.

The spelling of 195225571 in words is "one hundred ninety-five million, two hundred twenty-five thousand, five hundred seventy-one".