195415871 has 12 divisors (see below), whose sum is σ = 227622888. Its totient is φ = 167276592.

The previous prime is 195415793. The next prime is 195415873. The reversal of 195415871 is 178514591.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-195415871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195415873) 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 in 11 ways as a sum of consecutive naturals, for example, 42245 + ... + 46641.

It is an arithmetic number, because the mean of its divisors is an integer number (18968574).

Almost surely, 2^195415871 is an apocalyptic number.

195415871 is a deficient number, since it is larger than the sum of its proper divisors (32207017).

195415871 is an equidigital number, since it uses as much as digits as its factorization.

195415871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318 (or 5311 counting only the distinct ones).

The product of its digits is 50400, while the sum is 41.

The square root of 195415871 is about 13979.1226834877. The cubic root of 195415871 is about 580.3009446937.

The spelling of 195415871 in words is "one hundred ninety-five million, four hundred fifteen thousand, eight hundred seventy-one".