2215045 has 12 divisors (see below), whose sum is σ = 3092364. Its totient is φ = 1518720.

The previous prime is 2215013. The next prime is 2215051. The reversal of 2215045 is 5405122.

It can be written as a sum of positive squares in 2 ways, for example, as 1695204 + 519841 = 1302^2 + 721^2 .

It is not a de Polignac number, because 2215045 - 2⁵ = 2215013 is a prime.

It is a Duffinian number.

It is a congruent 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, 4276 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (257697).

2^2215045 is an apocalyptic number.

It is an amenable number.

2215045 is a deficient number, since it is larger than the sum of its proper divisors (877319).

2215045 is an equidigital number, since it uses as much as digits as its factorization.

2215045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9060 (or 9053 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2215045 is about 1488.3027245826. The cubic root of 2215045 is about 130.3549471433.

The spelling of 2215045 in words is "two million, two hundred fifteen thousand, forty-five".