3081613 has 4 divisors (see below), whose sum is σ = 3125088. Its totient is φ = 3038140.

The previous prime is 3081599. The next prime is 3081643. The reversal of 3081613 is 3161803.

3081613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 3161803 = 229 ⋅13807.

It is a cyclic number.

It is not a de Polignac number, because 3081613 - 2⁵ = 3081581 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21631 + ... + 21772.

It is an arithmetic number, because the mean of its divisors is an integer number (781272).

Almost surely, 2^3081613 is an apocalyptic number.

It is an amenable number.

3081613 is a deficient number, since it is larger than the sum of its proper divisors (43475).

3081613 is an equidigital number, since it uses as much as digits as its factorization.

3081613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43474.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 3081613 is about 1755.4523633525. The cubic root of 3081613 is about 145.5211213104.

The spelling of 3081613 in words is "three million, eighty-one thousand, six hundred thirteen".