12703129 has 4 divisors (see below), whose sum is σ = 12710500. Its totient is φ = 12695760.

The previous prime is 12703127. The next prime is 12703157. The reversal of 12703129 is 92130721.

12703129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92130721 = 5297 ⋅17393.

It can be written as a sum of positive squares in 2 ways, for example, as 2968729 + 9734400 = 1723^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 12703129 - 2¹ = 12703127 is a prime.

It is a super-2 number, since 2×12703129² = 322738972781282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12703127) 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, 439 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (3177625).

Almost surely, 2^12703129 is an apocalyptic number.

It is an amenable number.

12703129 is a deficient number, since it is larger than the sum of its proper divisors (7371).

12703129 is an equidigital number, since it uses as much as digits as its factorization.

12703129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12703129 is about 3564.1449184903. The cubic root of 12703129 is about 233.3298146862.

The spelling of 12703129 in words is "twelve million, seven hundred three thousand, one hundred twenty-nine".