2531235 has 16 divisors (see below), whose sum is σ = 4628736. Its totient is φ = 1157088.

The previous prime is 2531233. The next prime is 2531261. The reversal of 2531235 is 5321352.

It is not a de Polignac number, because 2531235 - 2¹ = 2531233 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (2531233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11949 + ... + 12158.

It is an arithmetic number, because the mean of its divisors is an integer number (289296).

2^2531235 is an apocalyptic number.

2531235 is a deficient number, since it is larger than the sum of its proper divisors (2097501).

2531235 is a wasteful number, since it uses less digits than its factorization.

2531235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24122.

The product of its digits is 900, while the sum is 21.

The square root of 2531235 is about 1590.9855436175. The cubic root of 2531235 is about 136.2837752588.

Adding to 2531235 its reverse (5321352), we get a palindrome (7852587).

The spelling of 2531235 in words is "two million, five hundred thirty-one thousand, two hundred thirty-five".