133715429 has 2 divisors, whose sum is σ = 133715430. Its totient is φ = 133715428.

The previous prime is 133715411. The next prime is 133715443. The reversal of 133715429 is 924517331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113912929 + 19802500 = 10673^2 + 4450^2 .

It is an emirp because it is prime and its reverse (924517331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133715429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133715459) 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, 66857714 + 66857715.

It is an arithmetic number, because the mean of its divisors is an integer number (66857715).

Almost surely, 2^133715429 is an apocalyptic number.

It is an amenable number.

133715429 is a deficient number, since it is larger than the sum of its proper divisors (1).

133715429 is an equidigital number, since it uses as much as digits as its factorization.

133715429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 133715429 is about 11563.5387749599. The cubic root of 133715429 is about 511.3604953632.

The spelling of 133715429 in words is "one hundred thirty-three million, seven hundred fifteen thousand, four hundred twenty-nine".