2231356 has 12 divisors (see below), whose sum is σ = 3995992. Its totient is φ = 1089648.

The previous prime is 2231351. The next prime is 2231357. The reversal of 2231356 is 6531322.

It is a super-3 number, since 3×2231356³ = 33329427182511498048, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6315 + ... + 6658.

2^2231356 is an apocalyptic number.

It is an amenable number.

2231356 is a deficient number, since it is larger than the sum of its proper divisors (1764636).

2231356 is a wasteful number, since it uses less digits than its factorization.

2231356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13020 (or 13018 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The square root of 2231356 is about 1493.7724056897. The cubic root of 2231356 is about 130.6741313011.

Adding to 2231356 its reverse (6531322), we get a palindrome (8762678).

The spelling of 2231356 in words is "two million, two hundred thirty-one thousand, three hundred fifty-six".