12153226 has 4 divisors (see below), whose sum is σ = 18229842. Its totient is φ = 6076612.

The previous prime is 12153221. The next prime is 12153247. The reversal of 12153226 is 62235121.

12153226 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.

It can be written as a sum of positive squares in only one way, i.e., 7535025 + 4618201 = 2745^2 + 2149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12153197 and 12153206.

It is not an unprimeable number, because it can be changed into a prime (12153221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3038305 + ... + 3038308.

Almost surely, 2^12153226 is an apocalyptic number.

12153226 is a deficient number, since it is larger than the sum of its proper divisors (6076616).

12153226 is an equidigital number, since it uses as much as digits as its factorization.

12153226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6076615.

The product of its digits is 720, while the sum is 22.

The square root of 12153226 is about 3486.1477306620. The cubic root of 12153226 is about 229.9131745367.

Adding to 12153226 its reverse (62235121), we get a palindrome (74388347).

The spelling of 12153226 in words is "twelve million, one hundred fifty-three thousand, two hundred twenty-six".