12149226 has 12 divisors (see below), whose sum is σ = 26323362. Its totient is φ = 4049736.

The previous prime is 12149219. The next prime is 12149233. The reversal of 12149226 is 62294121.

It is an interprime number because it is at equal distance from previous prime (12149219) and next prime (12149233).

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 3059001 = 3015^2 + 1749^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12149226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337461 + ... + 337496.

Almost surely, 2^12149226 is an apocalyptic number.

12149226 is an abundant number, since it is smaller than the sum of its proper divisors (14174136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12149226 is a wasteful number, since it uses less digits than its factorization.

12149226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674965 (or 674962 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 12149226 is about 3485.5739842958. The cubic root of 12149226 is about 229.8879479395.

It can be divided in two parts, 1214 and 9226, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 12149226 in words is "twelve million, one hundred forty-nine thousand, two hundred twenty-six".