2231168 has 16 divisors (see below), whose sum is σ = 4445160. Its totient is φ = 1115520.

The previous prime is 2231149. The next prime is 2231171. The reversal of 2231168 is 8611322.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×2231168³ = 33321003509555920896, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8588 + ... + 8843.

2^2231168 is an apocalyptic number.

It is an amenable number.

2231168 is a deficient number, since it is larger than the sum of its proper divisors (2213992).

2231168 is an equidigital number, since it uses as much as digits as its factorization.

2231168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17445 (or 17433 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 2231168 is about 1493.7094764378. The cubic root of 2231168 is about 130.6704612716.

The spelling of 2231168 in words is "two million, two hundred thirty-one thousand, one hundred sixty-eight".