195322513 has 2 divisors, whose sum is σ = 195322514. Its totient is φ = 195322512.

The previous prime is 195322507. The next prime is 195322559. The reversal of 195322513 is 315223591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147671104 + 47651409 = 12152^2 + 6903^2 .

It is a cyclic number.

It is not a de Polignac number, because 195322513 - 2⁵ = 195322481 is a prime.

It is equal to p_10834384 and since 195322513 and 10834384 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (195322583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97661256 + 97661257.

It is an arithmetic number, because the mean of its divisors is an integer number (97661257).

Almost surely, 2^195322513 is an apocalyptic number.

It is an amenable number.

195322513 is a deficient number, since it is larger than the sum of its proper divisors (1).

195322513 is an equidigital number, since it uses as much as digits as its factorization.

195322513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 31.

The square root of 195322513 is about 13975.7830907610. The cubic root of 195322513 is about 580.2085189610.

The spelling of 195322513 in words is "one hundred ninety-five million, three hundred twenty-two thousand, five hundred thirteen".