2287131 has 16 divisors (see below), whose sum is σ = 3802368. Its totient is φ = 1188000.

The previous prime is 2287121. The next prime is 2287133. The reversal of 2287131 is 1317822.

2287131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2287131 - 2⁵ = 2287099 is a prime.

It is a super-2 number, since 2×2287131² = 10461936422322, which contains 22 as substring.

2287131 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4720 + ... + 5181.

It is an arithmetic number, because the mean of its divisors is an integer number (237648).

2^2287131 is an apocalyptic number.

2287131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2287131 is a deficient number, since it is larger than the sum of its proper divisors (1515237).

2287131 is a wasteful number, since it uses less digits than its factorization.

2287131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9922.

The product of its digits is 672, while the sum is 24.

The square root of 2287131 is about 1512.3263536684. The cubic root of 2287131 is about 131.7539608765.

It can be divided in two parts, 22 and 87131, that added together give a triangular number (87153 = T₄₁₇).

The spelling of 2287131 in words is "two million, two hundred eighty-seven thousand, one hundred thirty-one".