12036281 has 2 divisors, whose sum is σ = 12036282. Its totient is φ = 12036280.

The previous prime is 12036257. The next prime is 12036293. The reversal of 12036281 is 18263021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6677056 + 5359225 = 2584^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 12036281 - 2¹⁴ = 12019897 is a prime.

It is a super-2 number, since 2×12036281² = 289744120621922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12036181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018140 + 6018141.

It is an arithmetic number, because the mean of its divisors is an integer number (6018141).

Almost surely, 2^12036281 is an apocalyptic number.

It is an amenable number.

12036281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036281 is an equidigital number, since it uses as much as digits as its factorization.

12036281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12036281 is about 3469.3343741992. The cubic root of 12036281 is about 229.1733462442.

The spelling of 12036281 in words is "twelve million, thirty-six thousand, two hundred eighty-one".