129140533 has 2 divisors, whose sum is σ = 129140534. Its totient is φ = 129140532.

The previous prime is 129140497. The next prime is 129140563. The reversal of 129140533 is 335041921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127644804 + 1495729 = 11298^2 + 1223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129140533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129140563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64570266 + 64570267.

It is an arithmetic number, because the mean of its divisors is an integer number (64570267).

Almost surely, 2^129140533 is an apocalyptic number.

It is an amenable number.

129140533 is a deficient number, since it is larger than the sum of its proper divisors (1).

129140533 is an equidigital number, since it uses as much as digits as its factorization.

129140533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 129140533 is about 11364.0016279478. The cubic root of 129140533 is about 505.4608517333.

The spelling of 129140533 in words is "one hundred twenty-nine million, one hundred forty thousand, five hundred thirty-three".