2531286 has 12 divisors (see below), whose sum is σ = 5484492. Its totient is φ = 843756.

The previous prime is 2531267. The next prime is 2531293. The reversal of 2531286 is 6821352.

2531286 = 794² + 795² + ... + 797².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70296 + ... + 70331.

It is an arithmetic number, because the mean of its divisors is an integer number (457041).

2^2531286 is an apocalyptic number.

2531286 is an abundant number, since it is smaller than the sum of its proper divisors (2953206).

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

2531286 is a wasteful number, since it uses less digits than its factorization.

2531286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140635 (or 140632 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2531286 is about 1591.0015713380. The cubic root of 2531286 is about 136.2846905467.

The spelling of 2531286 in words is "two million, five hundred thirty-one thousand, two hundred eighty-six".