2273286281 has 4 divisors (see below), whose sum is σ = 2598041472. Its totient is φ = 1948531092.

The previous prime is 2273286247. The next prime is 2273286283. The reversal of 2273286281 is 1826823722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2273286281 - 2³⁰ = 1199544457 is a prime.

It is a super-2 number, since 2×2273286281² = 10335661030765621922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2273286283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162377585 + ... + 162377598.

It is an arithmetic number, because the mean of its divisors is an integer number (649510368).

Almost surely, 2^2273286281 is an apocalyptic number.

It is an amenable number.

2273286281 is a deficient number, since it is larger than the sum of its proper divisors (324755191).

2273286281 is an equidigital number, since it uses as much as digits as its factorization.

2273286281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324755190.

The product of its digits is 129024, while the sum is 41.

The square root of 2273286281 is about 47678.9920300335. The cubic root of 2273286281 is about 1314.8757333646.

The spelling of 2273286281 in words is "two billion, two hundred seventy-three million, two hundred eighty-six thousand, two hundred eighty-one".