2215613 has 4 divisors (see below), whose sum is σ = 2311968. Its totient is φ = 2119260.

The previous prime is 2215583. The next prime is 2215639. The reversal of 2215613 is 3165122.

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.

It is a cyclic number.

It is not a de Polignac number, because 2215613 - 2¹⁴ = 2199229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48143 + ... + 48188.

It is an arithmetic number, because the mean of its divisors is an integer number (577992).

2^2215613 is an apocalyptic number.

2215613 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2215613 is a deficient number, since it is larger than the sum of its proper divisors (96355).

2215613 is an equidigital number, since it uses as much as digits as its factorization.

2215613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96354.

The product of its digits is 360, while the sum is 20.

The square root of 2215613 is about 1488.4935337448. The cubic root of 2215613 is about 130.3660884192.

The spelling of 2215613 in words is "two million, two hundred fifteen thousand, six hundred thirteen".