2281451855 has 4 divisors (see below), whose sum is σ = 2737742232. Its totient is φ = 1825161480.

The previous prime is 2281451849. The next prime is 2281451941. The reversal of 2281451855 is 5581541822.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2281451855 - 2⁶ = 2281451791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228145181 + ... + 228145190.

It is an arithmetic number, because the mean of its divisors is an integer number (684435558).

Almost surely, 2^2281451855 is an apocalyptic number.

2281451855 is a deficient number, since it is larger than the sum of its proper divisors (456290377).

2281451855 is an equidigital number, since it uses as much as digits as its factorization.

2281451855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456290376.

The product of its digits is 128000, while the sum is 41.

The square root of 2281451855 is about 47764.5460043325. The cubic root of 2281451855 is about 1316.4481831212.

The spelling of 2281451855 in words is "two billion, two hundred eighty-one million, four hundred fifty-one thousand, eight hundred fifty-five".