12326281 has 16 divisors (see below), whose sum is σ = 13942656. Its totient is φ = 10800000.

The previous prime is 12326261. The next prime is 12326287. The reversal of 12326281 is 18262321.

It is a 5-Lehmer number, since φ(12326281) divides (12326281-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 12326281 - 2¹¹ = 12324233 is a prime.

It is a super-2 number, since 2×12326281² = 303874406581922, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (1152) is a multiple of the sum of its prime divisors (384).

It is not an unprimeable number, because it can be changed into a prime (12326287) by changing a digit.

It is a nontrivial repunit in base 59.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68011 + ... + 68191.

It is an arithmetic number, because the mean of its divisors is an integer number (871416).

Almost surely, 2^12326281 is an apocalyptic number.

12326281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12326281 is a deficient number, since it is larger than the sum of its proper divisors (1616375).

12326281 is a wasteful number, since it uses less digits than its factorization.

12326281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its digits is 1152, while the sum is 25.

The square root of 12326281 is about 3510.8803739233. The cubic root of 12326281 is about 230.9993128544. Note that the first 3 decimals are identical.

The spelling of 12326281 in words is "twelve million, three hundred twenty-six thousand, two hundred eighty-one".