2281105213 has 4 divisors (see below), whose sum is σ = 2324144988. Its totient is φ = 2238065440.

The previous prime is 2281105153. The next prime is 2281105217. The reversal of 2281105213 is 3125011822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1218149604 + 1062955609 = 34902^2 + 32603^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281105213 - 2⁹ = 2281104701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281105217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21519808 + ... + 21519913.

It is an arithmetic number, because the mean of its divisors is an integer number (581036247).

Almost surely, 2^2281105213 is an apocalyptic number.

It is an amenable number.

2281105213 is a deficient number, since it is larger than the sum of its proper divisors (43039775).

2281105213 is an equidigital number, since it uses as much as digits as its factorization.

2281105213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43039774.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 2281105213 is about 47760.9172127169. The cubic root of 2281105213 is about 1316.3815063771.

The spelling of 2281105213 in words is "two billion, two hundred eighty-one million, one hundred five thousand, two hundred thirteen".