133612429 has 2 divisors, whose sum is σ = 133612430. Its totient is φ = 133612428.

The previous prime is 133612397. The next prime is 133612441. The reversal of 133612429 is 924216331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116596804 + 17015625 = 10798^2 + 4125^2 .

It is a cyclic number.

It is not a de Polignac number, because 133612429 - 2⁵ = 133612397 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133612429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133612459) 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, 66806214 + 66806215.

It is an arithmetic number, because the mean of its divisors is an integer number (66806215).

Almost surely, 2^133612429 is an apocalyptic number.

It is an amenable number.

133612429 is a deficient number, since it is larger than the sum of its proper divisors (1).

133612429 is an equidigital number, since it uses as much as digits as its factorization.

133612429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 133612429 is about 11559.0842630374. The cubic root of 133612429 is about 511.2291625743.

The spelling of 133612429 in words is "one hundred thirty-three million, six hundred twelve thousand, four hundred twenty-nine".