2281613 has 4 divisors (see below), whose sum is σ = 2284800. Its totient is φ = 2278428.

The previous prime is 2281607. The next prime is 2281619. The reversal of 2281613 is 3161822.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3161822 = 2 ⋅1580911.

It is an interprime number because it is at equal distance from previous prime (2281607) and next prime (2281619).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2281613 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 (2281619) 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, 38 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (571200).

2^2281613 is an apocalyptic number.

It is an amenable number.

2281613 is a deficient number, since it is larger than the sum of its proper divisors (3187).

2281613 is a wasteful number, since it uses less digits than its factorization.

2281613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186.

The product of its digits is 576, while the sum is 23.

The square root of 2281613 is about 1510.5009102943. The cubic root of 2281613 is about 131.6479177135.

The spelling of 2281613 in words is "two million, two hundred eighty-one thousand, six hundred thirteen".