2131255 has 12 divisors (see below), whose sum is σ = 2975400. Its totient is φ = 1461264.

The previous prime is 2131253. The next prime is 2131267. The reversal of 2131255 is 5521312.

It is not a de Polignac number, because 2131255 - 2¹ = 2131253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4105 + ... + 4594.

It is an arithmetic number, because the mean of its divisors is an integer number (247950).

2^2131255 is an apocalyptic number.

2131255 is a deficient number, since it is larger than the sum of its proper divisors (844145).

2131255 is an equidigital number, since it uses as much as digits as its factorization.

2131255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718 (or 8711 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 2131255 is about 1459.8818445340. The cubic root of 2131255 is about 128.6901000151.

Adding to 2131255 its reverse (5521312), we get a palindrome (7652567).

The spelling of 2131255 in words is "two million, one hundred thirty-one thousand, two hundred fifty-five".