13143129 has 4 divisors (see below), whose sum is σ = 17524176. Its totient is φ = 8762084.

The previous prime is 13143089. The next prime is 13143149. The reversal of 13143129 is 92134131.

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 not a de Polignac number, because 13143129 - 2⁸ = 13142873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13143099 and 13143108.

It is not an unprimeable number, because it can be changed into a prime (13143149) 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, 2190519 + ... + 2190524.

It is an arithmetic number, because the mean of its divisors is an integer number (4381044).

Almost surely, 2^13143129 is an apocalyptic number.

It is an amenable number.

13143129 is a deficient number, since it is larger than the sum of its proper divisors (4381047).

13143129 is an equidigital number, since it uses as much as digits as its factorization.

13143129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381046.

The product of its digits is 648, while the sum is 24.

The square root of 13143129 is about 3625.3453628586. The cubic root of 13143129 is about 235.9932548584.

The spelling of 13143129 in words is "thirteen million, one hundred forty-three thousand, one hundred twenty-nine".