2124255 has 16 divisors (see below), whose sum is σ = 3884544. Its totient is φ = 971040.

The previous prime is 2124253. The next prime is 2124277. The reversal of 2124255 is 5524212.

It is a happy number.

It is not a de Polignac number, because 2124255 - 2¹ = 2124253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10011 + ... + 10220.

It is an arithmetic number, because the mean of its divisors is an integer number (242784).

2^2124255 is an apocalyptic number.

2124255 is a deficient number, since it is larger than the sum of its proper divisors (1760289).

2124255 is a wasteful number, since it uses less digits than its factorization.

2124255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20246.

The product of its digits is 800, while the sum is 21.

The square root of 2124255 is about 1457.4824184188. The cubic root of 2124255 is about 128.5490534255.

Adding to 2124255 its reverse (5524212), we get a palindrome (7648467).

The spelling of 2124255 in words is "two million, one hundred twenty-four thousand, two hundred fifty-five".