12529129 has 4 divisors (see below), whose sum is σ = 12565584. Its totient is φ = 12492676.

The previous prime is 12529117. The next prime is 12529159. The reversal of 12529129 is 92192521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12529129 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12529129.

It is not an unprimeable number, because it can be changed into a prime (12529159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17707 + ... + 18400.

It is an arithmetic number, because the mean of its divisors is an integer number (3141396).

Almost surely, 2^12529129 is an apocalyptic number.

It is an amenable number.

12529129 is a deficient number, since it is larger than the sum of its proper divisors (36455).

12529129 is an equidigital number, since it uses as much as digits as its factorization.

12529129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36454.

The product of its digits is 3240, while the sum is 31.

The square root of 12529129 is about 3539.6509714942. The cubic root of 12529129 is about 232.2595749518.

The spelling of 12529129 in words is "twelve million, five hundred twenty-nine thousand, one hundred twenty-nine".