12158429 has 4 divisors (see below), whose sum is σ = 12276576. Its totient is φ = 12040284.

The previous prime is 12158411. The next prime is 12158431. The reversal of 12158429 is 92485121.

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-12158429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12158395 and 12158404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12158449) 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, 58919 + ... + 59124.

It is an arithmetic number, because the mean of its divisors is an integer number (3069144).

Almost surely, 2^12158429 is an apocalyptic number.

It is an amenable number.

12158429 is a deficient number, since it is larger than the sum of its proper divisors (118147).

12158429 is a wasteful number, since it uses less digits than its factorization.

12158429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118146.

The product of its digits is 5760, while the sum is 32.

The square root of 12158429 is about 3486.8938899829. The cubic root of 12158429 is about 229.9459797518.

The spelling of 12158429 in words is "twelve million, one hundred fifty-eight thousand, four hundred twenty-nine".