2215128 has 16 divisors (see below), whose sum is σ = 5537880. Its totient is φ = 738368.

The previous prime is 2215127. The next prime is 2215133. The reversal of 2215128 is 8215122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46125 + ... + 46172.

2^2215128 is an apocalyptic number.

It is an amenable number.

2215128 is an abundant number, since it is smaller than the sum of its proper divisors (3322752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215128 is a wasteful number, since it uses less digits than its factorization.

2215128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92306 (or 92302 counting only the distinct ones).

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

The square root of 2215128 is about 1488.3306084335. The cubic root of 2215128 is about 130.3565753007.

The spelling of 2215128 in words is "two million, two hundred fifteen thousand, one hundred twenty-eight".