195902071 has 4 divisors (see below), whose sum is σ = 197217000. Its totient is φ = 194587144.

The previous prime is 195902053. The next prime is 195902089. The reversal of 195902071 is 170209591.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (195902053) and next prime (195902089).

It is a cyclic number.

It is not a de Polignac number, because 195902071 - 2¹⁷ = 195770999 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 (195902041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657241 + ... + 657538.

It is an arithmetic number, because the mean of its divisors is an integer number (49304250).

Almost surely, 2^195902071 is an apocalyptic number.

195902071 is a deficient number, since it is larger than the sum of its proper divisors (1314929).

195902071 is a wasteful number, since it uses less digits than its factorization.

195902071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314928.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 195902071 is about 13996.5020987388. The cubic root of 195902071 is about 580.7818142843.

The spelling of 195902071 in words is "one hundred ninety-five million, nine hundred two thousand, seventy-one".