12267146 has 4 divisors (see below), whose sum is σ = 18400722. Its totient is φ = 6133572.

The previous prime is 12267133. The next prime is 12267181. The reversal of 12267146 is 64176221.

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., 7623121 + 4644025 = 2761^2 + 2155^2 .

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 as a sum of consecutive naturals, namely, 3066785 + ... + 3066788.

Almost surely, 2^12267146 is an apocalyptic number.

12267146 is a deficient number, since it is larger than the sum of its proper divisors (6133576).

12267146 is an equidigital number, since it uses as much as digits as its factorization.

12267146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133575.

The product of its digits is 4032, while the sum is 29.

The square root of 12267146 is about 3502.4485720707. The cubic root of 12267146 is about 230.6293162188.

The spelling of 12267146 in words is "twelve million, two hundred sixty-seven thousand, one hundred forty-six".