2124855 has 24 divisors (see below), whose sum is σ = 3845088. Its totient is φ = 1083456.

The previous prime is 2124853. The next prime is 2124869. The reversal of 2124855 is 5584212.

It is a happy number.

It is not a de Polignac number, because 2124855 - 2¹ = 2124853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124853) 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, 9 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (160212).

2^2124855 is an apocalyptic number.

2124855 is a deficient number, since it is larger than the sum of its proper divisors (1720233).

2124855 is a wasteful number, since it uses less digits than its factorization.

2124855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087 (or 2084 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2124855 is about 1457.6882382732. The cubic root of 2124855 is about 128.5611552638.

The spelling of 2124855 in words is "two million, one hundred twenty-four thousand, eight hundred fifty-five".