2182215 has 24 divisors (see below), whose sum is σ = 4062960. Its totient is φ = 997248.

The previous prime is 2182211. The next prime is 2182249. The reversal of 2182215 is 5122812.

It is a happy number.

It is not a de Polignac number, because 2182215 - 2² = 2182211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a d-powerful number, because it can be written as 2⁴ + 1 + 8⁷ + 2¹⁴ + 2¹⁶ + 1 + 5⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2182191 and 2182200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 750 + ... + 2219.

It is an arithmetic number, because the mean of its divisors is an integer number (169290).

2^2182215 is an apocalyptic number.

2182215 is a deficient number, since it is larger than the sum of its proper divisors (1880745).

2182215 is a wasteful number, since it uses less digits than its factorization.

2182215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991 (or 2984 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 2182215 is about 1477.2322092346. The cubic root of 2182215 is about 129.7077260272.

The spelling of 2182215 in words is "two million, one hundred eighty-two thousand, two hundred fifteen".