33118489 has 2 divisors, whose sum is σ = 33118490. Its totient is φ = 33118488.

The previous prime is 33118453. The next prime is 33118507. The reversal of 33118489 is 98481133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24088464 + 9030025 = 4908^2 + 3005^2 .

It is a cyclic number.

It is not a de Polignac number, because 33118489 - 2⁷ = 33118361 is a prime.

It is not a weakly prime, because it can be changed into another prime (33118429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16559244 + 16559245.

It is an arithmetic number, because the mean of its divisors is an integer number (16559245).

Almost surely, 2^33118489 is an apocalyptic number.

It is an amenable number.

33118489 is a deficient number, since it is larger than the sum of its proper divisors (1).

33118489 is an equidigital number, since it uses as much as digits as its factorization.

33118489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 33118489 is about 5754.8665492781. The cubic root of 33118489 is about 321.1368709443.

The spelling of 33118489 in words is "thirty-three million, one hundred eighteen thousand, four hundred eighty-nine".