286412281 has 2 divisors, whose sum is σ = 286412282. Its totient is φ = 286412280.

The previous prime is 286412279. The next prime is 286412303. The reversal of 286412281 is 182214682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181144681 + 105267600 = 13459^2 + 10260^2 .

It is a cyclic number.

It is not a de Polignac number, because 286412281 - 2¹ = 286412279 is a prime.

It is a super-2 number, since 2×286412281² = 164063989415245922, which contains 22 as substring.

Together with 286412279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (286412201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143206140 + 143206141.

It is an arithmetic number, because the mean of its divisors is an integer number (143206141).

Almost surely, 2^286412281 is an apocalyptic number.

286412281 is the 10704-th centered pentagonal number.

It is an amenable number.

286412281 is a deficient number, since it is larger than the sum of its proper divisors (1).

286412281 is an equidigital number, since it uses as much as digits as its factorization.

286412281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 34.

The square root of 286412281 is about 16923.7194788852. The cubic root of 286412281 is about 659.1696636400.

The spelling of 286412281 in words is "two hundred eighty-six million, four hundred twelve thousand, two hundred eighty-one".