195086263 has 2 divisors, whose sum is σ = 195086264. Its totient is φ = 195086262.

The previous prime is 195086261. The next prime is 195086341. The reversal of 195086263 is 362680591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195086263 - 2¹ = 195086261 is a prime.

It is a super-2 number, since 2×195086263² = 76117300022610338, which contains 22 as substring.

Together with 195086261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195086261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97543131 + 97543132.

It is an arithmetic number, because the mean of its divisors is an integer number (97543132).

Almost surely, 2^195086263 is an apocalyptic number.

195086263 is a deficient number, since it is larger than the sum of its proper divisors (1).

195086263 is an equidigital number, since it uses as much as digits as its factorization.

195086263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 195086263 is about 13967.3284131218. The cubic root of 195086263 is about 579.9744965005.

The spelling of 195086263 in words is "one hundred ninety-five million, eighty-six thousand, two hundred sixty-three".