981334033 has 2 divisors, whose sum is σ = 981334034. Its totient is φ = 981334032.

The previous prime is 981334007. The next prime is 981334037. The reversal of 981334033 is 330433189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851647489 + 129686544 = 29183^2 + 11388^2 .

It is an emirp because it is prime and its reverse (330433189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 981334033 - 2²⁹ = 444463121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 981334033.

It is not a weakly prime, because it can be changed into another prime (981334037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490667016 + 490667017.

It is an arithmetic number, because the mean of its divisors is an integer number (490667017).

Almost surely, 2^981334033 is an apocalyptic number.

It is an amenable number.

981334033 is a deficient number, since it is larger than the sum of its proper divisors (1).

981334033 is an equidigital number, since it uses as much as digits as its factorization.

981334033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 981334033 is about 31326.2514993416. The cubic root of 981334033 is about 993.7388913332.

The spelling of 981334033 in words is "nine hundred eighty-one million, three hundred thirty-four thousand, thirty-three".