12266251 has 4 divisors (see below), whose sum is σ = 12421600. Its totient is φ = 12110904.

The previous prime is 12266249. The next prime is 12266269. The reversal of 12266251 is 15266221.

12266251 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 15266221 = 17 ⋅898013.

It is a cyclic number.

It is not a de Polignac number, because 12266251 - 2¹ = 12266249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12266281) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 77556 + ... + 77713.

It is an arithmetic number, because the mean of its divisors is an integer number (3105400).

Almost surely, 2^12266251 is an apocalyptic number.

12266251 is a deficient number, since it is larger than the sum of its proper divisors (155349).

12266251 is an equidigital number, since it uses as much as digits as its factorization.

12266251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155348.

The product of its digits is 1440, while the sum is 25.

The square root of 12266251 is about 3502.3208019826. The cubic root of 12266251 is about 230.6237072462.

The spelling of 12266251 in words is "twelve million, two hundred sixty-six thousand, two hundred fifty-one".