12362281 has 8 divisors (see below), whose sum is σ = 13149864. Its totient is φ = 11581440.

The previous prime is 12362263. The next prime is 12362291. The reversal of 12362281 is 18226321.

It can be written as a sum of positive squares in 4 ways, for example, as 25 + 12362256 = 5^2 + 3516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12362281 - 2⁵ = 12362249 is a prime.

It is a super-2 number, since 2×12362281² = 305651983045922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12362221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2401 + ... + 5521.

It is an arithmetic number, because the mean of its divisors is an integer number (1643733).

Almost surely, 2^12362281 is an apocalyptic number.

It is an amenable number.

12362281 is a deficient number, since it is larger than the sum of its proper divisors (787583).

12362281 is a wasteful number, since it uses less digits than its factorization.

12362281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371.

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

The square root of 12362281 is about 3516.0035551745. The cubic root of 12362281 is about 231.2239789567.

Subtracting from 12362281 its sum of digits (25), we obtain a square (12362256 = 3516²).

The spelling of 12362281 in words is "twelve million, three hundred sixty-two thousand, two hundred eighty-one".