195312463 has 2 divisors, whose sum is σ = 195312464. Its totient is φ = 195312462.

The previous prime is 195312461. The next prime is 195312503. The reversal of 195312463 is 364213591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195312463 - 2¹ = 195312461 is a prime.

Together with 195312461, it forms a pair of twin primes.

It is equal to p_10833856 and since 195312463 and 10833856 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195312461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97656231 + 97656232.

It is an arithmetic number, because the mean of its divisors is an integer number (97656232).

Almost surely, 2^195312463 is an apocalyptic number.

195312463 is a deficient number, since it is larger than the sum of its proper divisors (1).

195312463 is an equidigital number, since it uses as much as digits as its factorization.

195312463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 195312463 is about 13975.4235356214. The cubic root of 195312463 is about 580.1985675640.

The spelling of 195312463 in words is "one hundred ninety-five million, three hundred twelve thousand, four hundred sixty-three".