2129255 has 4 divisors (see below), whose sum is σ = 2555112. Its totient is φ = 1703400.

The previous prime is 2129227. The next prime is 2129261. The reversal of 2129255 is 5529212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2129255 - 2¹⁴ = 2112871 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 3 ways as a sum of consecutive naturals, for example, 212921 + ... + 212930.

It is an arithmetic number, because the mean of its divisors is an integer number (638778).

2^2129255 is an apocalyptic number.

2129255 is a deficient number, since it is larger than the sum of its proper divisors (425857).

2129255 is an equidigital number, since it uses as much as digits as its factorization.

2129255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425856.

The product of its digits is 1800, while the sum is 26.

The square root of 2129255 is about 1459.1966968164. The cubic root of 2129255 is about 128.6498325434.

The spelling of 2129255 in words is "two million, one hundred twenty-nine thousand, two hundred fifty-five".