12823156 has 6 divisors (see below), whose sum is σ = 22440530. Its totient is φ = 6411576.

The previous prime is 12823147. The next prime is 12823177. The reversal of 12823156 is 65132821.

12823156 is digitally balanced in base 2, 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 only one way, i.e., 12013156 + 810000 = 3466^2 + 900^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602891 + ... + 1602898.

Almost surely, 2^12823156 is an apocalyptic number.

It is an amenable number.

12823156 is a deficient number, since it is larger than the sum of its proper divisors (9617374).

12823156 is a wasteful number, since it uses less digits than its factorization.

12823156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205793 (or 3205791 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 12823156 is about 3580.9434511034. The cubic root of 12823156 is about 234.0623935697.

Adding to 12823156 its reverse (65132821), we get a palindrome (77955977).

The spelling of 12823156 in words is "twelve million, eight hundred twenty-three thousand, one hundred fifty-six".