133240829 has 2 divisors, whose sum is σ = 133240830. Its totient is φ = 133240828.

The previous prime is 133240799. The next prime is 133240843. The reversal of 133240829 is 928042331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70593604 + 62647225 = 8402^2 + 7915^2 .

It is an emirp because it is prime and its reverse (928042331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133240829 - 2¹⁶ = 133175293 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133240795 and 133240804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133240229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66620414 + 66620415.

It is an arithmetic number, because the mean of its divisors is an integer number (66620415).

Almost surely, 2^133240829 is an apocalyptic number.

It is an amenable number.

133240829 is a deficient number, since it is larger than the sum of its proper divisors (1).

133240829 is an equidigital number, since it uses as much as digits as its factorization.

133240829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 133240829 is about 11542.9991336741. Note that the first 3 decimals coincide. The cubic root of 133240829 is about 510.7547826909.

The spelling of 133240829 in words is "one hundred thirty-three million, two hundred forty thousand, eight hundred twenty-nine".