2215105 has 12 divisors (see below), whose sum is σ = 2752596. Its totient is φ = 1711200.

The previous prime is 2215099. The next prime is 2215111. The reversal of 2215105 is 5015122.

It is an interprime number because it is at equal distance from previous prime (2215099) and next prime (2215111).

It can be written as a sum of positive squares in 2 ways, for example, as 753424 + 1461681 = 868^2 + 1209^2 .

It is not a de Polignac number, because 2215105 - 2³ = 2215097 is a prime.

It is a super-2 number, since 2×2215105² = 9813380322050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4575 + ... + 5035.

It is an arithmetic number, because the mean of its divisors is an integer number (229383).

2^2215105 is an apocalyptic number.

It is an amenable number.

2215105 is a deficient number, since it is larger than the sum of its proper divisors (537491).

2215105 is an equidigital number, since it uses as much as digits as its factorization.

2215105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2215105 is about 1488.3228816356. The cubic root of 2215105 is about 130.3561241286.

The spelling of 2215105 in words is "two million, two hundred fifteen thousand, one hundred five".