129933547 has 2 divisors, whose sum is σ = 129933548. Its totient is φ = 129933546.

The previous prime is 129933527. The next prime is 129933577. The reversal of 129933547 is 745339921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129933547 is a prime.

It is not a weakly prime, because it can be changed into another prime (129933527) 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, 64966773 + 64966774.

It is an arithmetic number, because the mean of its divisors is an integer number (64966774).

Almost surely, 2^129933547 is an apocalyptic number.

129933547 is a deficient number, since it is larger than the sum of its proper divisors (1).

129933547 is an equidigital number, since it uses as much as digits as its factorization.

129933547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 129933547 is about 11398.8397216559. The cubic root of 129933547 is about 506.4933699137.

The spelling of 129933547 in words is "one hundred twenty-nine million, nine hundred thirty-three thousand, five hundred forty-seven".