129265733 has 2 divisors, whose sum is σ = 129265734. Its totient is φ = 129265732.

The previous prime is 129265729. The next prime is 129265853. The reversal of 129265733 is 337562921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127622209 + 1643524 = 11297^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 129265733 - 2² = 129265729 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129265723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64632866 + 64632867.

It is an arithmetic number, because the mean of its divisors is an integer number (64632867).

Almost surely, 2^129265733 is an apocalyptic number.

It is an amenable number.

129265733 is a deficient number, since it is larger than the sum of its proper divisors (1).

129265733 is an equidigital number, since it uses as much as digits as its factorization.

129265733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 129265733 is about 11369.5089163956. The cubic root of 129265733 is about 505.6241447942.

The spelling of 129265733 in words is "one hundred twenty-nine million, two hundred sixty-five thousand, seven hundred thirty-three".