133824689 has 2 divisors, whose sum is σ = 133824690. Its totient is φ = 133824688.

The previous prime is 133824653. The next prime is 133824709. The reversal of 133824689 is 986428331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112360000 + 21464689 = 10600^2 + 4633^2 .

It is a cyclic number.

It is not a de Polignac number, because 133824689 - 2⁸ = 133824433 is a prime.

It is not a weakly prime, because it can be changed into another prime (133824389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66912344 + 66912345.

It is an arithmetic number, because the mean of its divisors is an integer number (66912345).

Almost surely, 2^133824689 is an apocalyptic number.

It is an amenable number.

133824689 is a deficient number, since it is larger than the sum of its proper divisors (1).

133824689 is an equidigital number, since it uses as much as digits as its factorization.

133824689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 133824689 is about 11568.2621426038. The cubic root of 133824689 is about 511.4997364302.

The spelling of 133824689 in words is "one hundred thirty-three million, eight hundred twenty-four thousand, six hundred eighty-nine".