2531140 has 24 divisors (see below), whose sum is σ = 5346432. Its totient is φ = 1006560.

The previous prime is 2531117. The next prime is 2531167. The reversal of 2531140 is 411352.

2531140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5187 + ... + 5653.

It is an arithmetic number, because the mean of its divisors is an integer number (222768).

2^2531140 is an apocalyptic number.

2531140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531140 is an abundant number, since it is smaller than the sum of its proper divisors (2815292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531140 is a wasteful number, since it uses less digits than its factorization.

2531140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2531140 is about 1590.9556876293. The cubic root of 2531140 is about 136.2820702781.

Adding to 2531140 its reverse (411352), we get a palindrome (2942492).

It can be divided in two parts, 253 and 1140, that multiplied together give a triangular number (288420 = T₇₅₉).

The spelling of 2531140 in words is "two million, five hundred thirty-one thousand, one hundred forty".