12158829 has 20 divisors (see below), whose sum is σ = 18658684. Its totient is φ = 7884864.

The previous prime is 12158813. The next prime is 12158849. The reversal of 12158829 is 92885121.

12158829 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8820900 + 3337929 = 2970^2 + 1827^2 .

It is not a de Polignac number, because 12158829 - 2⁴ = 12158813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12158793 and 12158802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12158849) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 969 + ... + 5025.

Almost surely, 2^12158829 is an apocalyptic number.

It is an amenable number.

12158829 is a deficient number, since it is larger than the sum of its proper divisors (6499855).

12158829 is an equidigital number, since it uses as much as digits as its factorization.

12158829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106 (or 4097 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 12158829 is about 3486.9512471499. The cubic root of 12158829 is about 229.9485013874.

The spelling of 12158829 in words is "twelve million, one hundred fifty-eight thousand, eight hundred twenty-nine".