195319071 has 12 divisors (see below), whose sum is σ = 283149672. Its totient is φ = 129740976.

The previous prime is 195319067. The next prime is 195319093. The reversal of 195319071 is 170913591.

It is not a de Polignac number, because 195319071 - 2² = 195319067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195319051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36681 + ... + 41666.

It is an arithmetic number, because the mean of its divisors is an integer number (23595806).

Almost surely, 2^195319071 is an apocalyptic number.

195319071 is a deficient number, since it is larger than the sum of its proper divisors (87830601).

195319071 is a wasteful number, since it uses less digits than its factorization.

195319071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78630 (or 78627 counting only the distinct ones).

The product of its (nonzero) digits is 8505, while the sum is 36.

The square root of 195319071 is about 13975.6599486393. The cubic root of 195319071 is about 580.2051107697.

The spelling of 195319071 in words is "one hundred ninety-five million, three hundred nineteen thousand, seventy-one".