195816833 has 2 divisors, whose sum is σ = 195816834. Its totient is φ = 195816832.

The previous prime is 195816827. The next prime is 195816847. The reversal of 195816833 is 338618591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194546704 + 1270129 = 13948^2 + 1127^2 .

It is an emirp because it is prime and its reverse (338618591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195816833 - 2⁶ = 195816769 is a prime.

It is a super-2 number, since 2×195816833² = 76688464172299778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (195816823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97908416 + 97908417.

It is an arithmetic number, because the mean of its divisors is an integer number (97908417).

Almost surely, 2^195816833 is an apocalyptic number.

It is an amenable number.

195816833 is a deficient number, since it is larger than the sum of its proper divisors (1).

195816833 is an equidigital number, since it uses as much as digits as its factorization.

195816833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 195816833 is about 13993.4567923726. The cubic root of 195816833 is about 580.6975683450.

The spelling of 195816833 in words is "one hundred ninety-five million, eight hundred sixteen thousand, eight hundred thirty-three".