2125215 has 24 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 1117824.

The previous prime is 2125181. The next prime is 2125219. The reversal of 2125215 is 5125212.

2125215 = 20² + 21² + ... + 185².

It is not a de Polignac number, because 2125215 - 2⁷ = 2125087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125219) 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, 3451 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (155610).

2^2125215 is an apocalyptic number.

2125215 is a deficient number, since it is larger than the sum of its proper divisors (1609425).

2125215 is a wasteful number, since it uses less digits than its factorization.

2125215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 660 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 2125215 is about 1457.8117162377. The cubic root of 2125215 is about 128.5684152733.

The spelling of 2125215 in words is "two million, one hundred twenty-five thousand, two hundred fifteen".