2281292257 has 4 divisors (see below), whose sum is σ = 2281565440. Its totient is φ = 2281019076.

The previous prime is 2281292249. The next prime is 2281292281. The reversal of 2281292257 is 7522921822.

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 2281292257 - 2³ = 2281292249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281292207) 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, 123657 + ... + 140902.

It is an arithmetic number, because the mean of its divisors is an integer number (570391360).

Almost surely, 2^2281292257 is an apocalyptic number.

It is an amenable number.

2281292257 is a deficient number, since it is larger than the sum of its proper divisors (273183).

2281292257 is an equidigital number, since it uses as much as digits as its factorization.

2281292257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273182.

The product of its digits is 80640, while the sum is 40.

The square root of 2281292257 is about 47762.8753008024. The cubic root of 2281292257 is about 1316.4174852133.

The spelling of 2281292257 in words is "two billion, two hundred eighty-one million, two hundred ninety-two thousand, two hundred fifty-seven".