133753429 has 2 divisors, whose sum is σ = 133753430. Its totient is φ = 133753428.

The previous prime is 133753387. The next prime is 133753463. The reversal of 133753429 is 924357331.

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., 100460529 + 33292900 = 10023^2 + 5770^2 .

It is an emirp because it is prime and its reverse (924357331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133753429 - 2¹⁹ = 133229141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133753469) 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, 66876714 + 66876715.

It is an arithmetic number, because the mean of its divisors is an integer number (66876715).

Almost surely, 2^133753429 is an apocalyptic number.

It is an amenable number.

133753429 is a deficient number, since it is larger than the sum of its proper divisors (1).

133753429 is an equidigital number, since it uses as much as digits as its factorization.

133753429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 133753429 is about 11565.1817538679. The cubic root of 133753429 is about 511.4089312057.

The spelling of 133753429 in words is "one hundred thirty-three million, seven hundred fifty-three thousand, four hundred twenty-nine".