199833481 has 2 divisors, whose sum is σ = 199833482. Its totient is φ = 199833480.

The previous prime is 199833457. The next prime is 199833527. The reversal of 199833481 is 184338991.

It is a happy number.

It is an a-pointer prime, because the next prime (199833527) can be obtained adding 199833481 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174240000 + 25593481 = 13200^2 + 5059^2 .

It is an emirp because it is prime and its reverse (184338991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199833481 is a prime.

It is a super-2 number, since 2×199833481² = 79866840257154722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (199833421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99916740 + 99916741.

It is an arithmetic number, because the mean of its divisors is an integer number (99916741).

Almost surely, 2^199833481 is an apocalyptic number.

It is an amenable number.

199833481 is a deficient number, since it is larger than the sum of its proper divisors (1).

199833481 is an equidigital number, since it uses as much as digits as its factorization.

199833481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 199833481 is about 14136.2470620741. The cubic root of 199833481 is about 584.6412010747.

The spelling of 199833481 in words is "one hundred ninety-nine million, eight hundred thirty-three thousand, four hundred eighty-one".