195963313 has 32 divisors (see below), whose sum is σ = 251983872. Its totient is φ = 148262400.

The previous prime is 195963281. The next prime is 195963323. The reversal of 195963313 is 313369591.

It is not a de Polignac number, because 195963313 - 2⁵ = 195963281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195963323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197248 + ... + 198238.

It is an arithmetic number, because the mean of its divisors is an integer number (7874496).

Almost surely, 2^195963313 is an apocalyptic number.

195963313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

195963313 is a deficient number, since it is larger than the sum of its proper divisors (56020559).

195963313 is a wasteful number, since it uses less digits than its factorization.

195963313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105.

The product of its digits is 65610, while the sum is 40.

The square root of 195963313 is about 13998.6896886816. The cubic root of 195963313 is about 580.8423284210.

The spelling of 195963313 in words is "one hundred ninety-five million, nine hundred sixty-three thousand, three hundred thirteen".