2281451819 has 2 divisors, whose sum is σ = 2281451820. Its totient is φ = 2281451818.

The previous prime is 2281451797. The next prime is 2281451849. The reversal of 2281451819 is 9181541822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2281451819 - 2²⁰ = 2280403243 is a prime.

It is a super-2 number, since 2×2281451819² = 10410044804836817522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2281451849) 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 as a sum of consecutive naturals, namely, 1140725909 + 1140725910.

It is an arithmetic number, because the mean of its divisors is an integer number (1140725910).

Almost surely, 2^2281451819 is an apocalyptic number.

2281451819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281451819 is an equidigital number, since it uses as much as digits as its factorization.

2281451819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 41.

The square root of 2281451819 is about 47764.5456274840. The cubic root of 2281451819 is about 1316.4481761969.

The spelling of 2281451819 in words is "two billion, two hundred eighty-one million, four hundred fifty-one thousand, eight hundred nineteen".