981133259 has 2 divisors, whose sum is σ = 981133260. Its totient is φ = 981133258.

The previous prime is 981133253. The next prime is 981133273. The reversal of 981133259 is 952331189.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981133259 is a prime.

It is a super-3 number, since 3×981133259³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (981133253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490566629 + 490566630.

It is an arithmetic number, because the mean of its divisors is an integer number (490566630).

Almost surely, 2^981133259 is an apocalyptic number.

981133259 is a deficient number, since it is larger than the sum of its proper divisors (1).

981133259 is an equidigital number, since it uses as much as digits as its factorization.

981133259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 981133259 is about 31323.0467707086. The cubic root of 981133259 is about 993.6711160621.

The spelling of 981133259 in words is "nine hundred eighty-one million, one hundred thirty-three thousand, two hundred fifty-nine".