133582489 has 2 divisors, whose sum is σ = 133582490. Its totient is φ = 133582488.

The previous prime is 133582457. The next prime is 133582513. The reversal of 133582489 is 984285331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128255625 + 5326864 = 11325^2 + 2308^2 .

It is an emirp because it is prime and its reverse (984285331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133582489 - 2⁵ = 133582457 is a prime.

It is not a weakly prime, because it can be changed into another prime (133582409) 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, 66791244 + 66791245.

It is an arithmetic number, because the mean of its divisors is an integer number (66791245).

Almost surely, 2^133582489 is an apocalyptic number.

It is an amenable number.

133582489 is a deficient number, since it is larger than the sum of its proper divisors (1).

133582489 is an equidigital number, since it uses as much as digits as its factorization.

133582489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 133582489 is about 11557.7891051879. The cubic root of 133582489 is about 511.1909741497.

The spelling of 133582489 in words is "one hundred thirty-three million, five hundred eighty-two thousand, four hundred eighty-nine".