2831481 has 12 divisors (see below), whose sum is σ = 4113252. Its totient is φ = 1876896.

The previous prime is 2831471. The next prime is 2831489. The reversal of 2831481 is 1841382.

It can be written as a sum of positive squares in 2 ways, for example, as 1863225 + 968256 = 1365^2 + 984^2 .

It is not a de Polignac number, because 2831481 - 2⁵ = 2831449 is a prime.

It is a super-2 number, since 2×2831481² = 16034569306722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2831489) 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, 975 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (342771).

2^2831481 is an apocalyptic number.

It is an amenable number.

2831481 is a deficient number, since it is larger than the sum of its proper divisors (1281771).

2831481 is a wasteful number, since it uses less digits than its factorization.

2831481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1797 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 2831481 is about 1682.7005081119. The cubic root of 2831481 is about 141.4722358509.

Subtracting from 2831481 its reverse (1841382), we obtain a palindrome (990099).

It can be divided in two parts, 283 and 1481, that added together give a square (1764 = 42²).

The spelling of 2831481 in words is "two million, eight hundred thirty-one thousand, four hundred eighty-one".