2281451849 has 2 divisors, whose sum is σ = 2281451850. Its totient is φ = 2281451848.

The previous prime is 2281451819. The next prime is 2281451941. The reversal of 2281451849 is 9481541822.

2281451849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1293481225 + 987970624 = 35965^2 + 31432^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281451849 - 2¹⁶ = 2281386313 is a prime.

It is a super-3 number, since 3×2281451849³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2281451819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140725924 + 1140725925.

It is an arithmetic number, because the mean of its divisors is an integer number (1140725925).

Almost surely, 2^2281451849 is an apocalyptic number.

It is an amenable number.

2281451849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281451849 is an equidigital number, since it uses as much as digits as its factorization.

2281451849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 44.

The square root of 2281451849 is about 47764.5459415245. The cubic root of 2281451849 is about 1316.4481819672.

The spelling of 2281451849 in words is "two billion, two hundred eighty-one million, four hundred fifty-one thousand, eight hundred forty-nine".