129153529 has 2 divisors, whose sum is σ = 129153530. Its totient is φ = 129153528.

The previous prime is 129153499. The next prime is 129153547. The reversal of 129153529 is 925351921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107744400 + 21409129 = 10380^2 + 4627^2 .

It is a cyclic number.

It is not a de Polignac number, because 129153529 - 2¹¹ = 129151481 is a prime.

It is not a weakly prime, because it can be changed into another prime (129153589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64576764 + 64576765.

It is an arithmetic number, because the mean of its divisors is an integer number (64576765).

Almost surely, 2^129153529 is an apocalyptic number.

It is an amenable number.

129153529 is a deficient number, since it is larger than the sum of its proper divisors (1).

129153529 is an equidigital number, since it uses as much as digits as its factorization.

129153529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 37.

The square root of 129153529 is about 11364.5734191830. The cubic root of 129153529 is about 505.4778067738.

The spelling of 129153529 in words is "one hundred twenty-nine million, one hundred fifty-three thousand, five hundred twenty-nine".