12429071 has 4 divisors (see below), whose sum is σ = 12444432. Its totient is φ = 12413712.

The previous prime is 12429061. The next prime is 12429073. The reversal of 12429071 is 17092421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12429071 - 2¹⁰ = 12428047 is a prime.

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 12429071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12429073) 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, 6395 + ... + 8108.

It is an arithmetic number, because the mean of its divisors is an integer number (3111108).

Almost surely, 2^12429071 is an apocalyptic number.

12429071 is a deficient number, since it is larger than the sum of its proper divisors (15361).

12429071 is an equidigital number, since it uses as much as digits as its factorization.

12429071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15360.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12429071 is about 3525.4887604416. The cubic root of 12429071 is about 231.6396444395.

The spelling of 12429071 in words is "twelve million, four hundred twenty-nine thousand, seventy-one".