2215594 has 4 divisors (see below), whose sum is σ = 3323394. Its totient is φ = 1107796.

The previous prime is 2215583. The next prime is 2215639. The reversal of 2215594 is 4955122.

2215594 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 an emirpimes, since its reverse is a distinct semiprime: 4955122 = 2 ⋅2477561.

It can be written as a sum of positive squares in only one way, i.e., 1288225 + 927369 = 1135^2 + 963^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 553897 + ... + 553900.

2^2215594 is an apocalyptic number.

2215594 is a deficient number, since it is larger than the sum of its proper divisors (1107800).

2215594 is a wasteful number, since it uses less digits than its factorization.

2215594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107799.

The product of its digits is 3600, while the sum is 28.

The square root of 2215594 is about 1488.4871514393. The cubic root of 2215594 is about 130.3657157664.

It can be divided in two parts, 2215 and 594, that added together give a square (2809 = 53²).

The spelling of 2215594 in words is "two million, two hundred fifteen thousand, five hundred ninety-four".