2193613 has 4 divisors (see below), whose sum is σ = 2199868. Its totient is φ = 2187360.

The previous prime is 2193601. The next prime is 2193637. The reversal of 2193613 is 3163912.

2193613 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 660969 = 1238^2 + 813^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193613 - 2²¹ = 96461 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 (2193643) 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, 2568 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (549967).

2^2193613 is an apocalyptic number.

It is an amenable number.

2193613 is a deficient number, since it is larger than the sum of its proper divisors (6255).

2193613 is an equidigital number, since it uses as much as digits as its factorization.

2193613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254.

The product of its digits is 972, while the sum is 25.

The square root of 2193613 is about 1481.0850752067. The cubic root of 2193613 is about 129.9331609071.

Subtracting 2193613 from its reverse (3163912), we obtain a cube (970299 = 99³).

The spelling of 2193613 in words is "two million, one hundred ninety-three thousand, six hundred thirteen".