195808733 has 2 divisors, whose sum is σ = 195808734. Its totient is φ = 195808732.

The previous prime is 195808687. The next prime is 195808763. The reversal of 195808733 is 337808591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189392644 + 6416089 = 13762^2 + 2533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195808733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195808763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97904366 + 97904367.

It is an arithmetic number, because the mean of its divisors is an integer number (97904367).

Almost surely, 2^195808733 is an apocalyptic number.

It is an amenable number.

195808733 is a deficient number, since it is larger than the sum of its proper divisors (1).

195808733 is an equidigital number, since it uses as much as digits as its factorization.

195808733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 195808733 is about 13993.1673683980. The cubic root of 195808733 is about 580.6895613467.

The spelling of 195808733 in words is "one hundred ninety-five million, eight hundred eight thousand, seven hundred thirty-three".