2231144 has 32 divisors (see below), whose sum is σ = 4428000. Its totient is φ = 1052352.

The previous prime is 2231129. The next prime is 2231149. The reversal of 2231144 is 4411322.

It is a super-3 number, since 3×2231144³ = 33319928249223101952, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13607 + ... + 13769.

It is an arithmetic number, because the mean of its divisors is an integer number (138375).

2^2231144 is an apocalyptic number.

It is an amenable number.

2231144 is a deficient number, since it is larger than the sum of its proper divisors (2196856).

2231144 is a wasteful number, since it uses less digits than its factorization.

2231144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 253 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 2231144 is about 1493.7014427254. The cubic root of 2231144 is about 130.6699927424.

Adding to 2231144 its reverse (4411322), we get a palindrome (6642466).

The spelling of 2231144 in words is "two million, two hundred thirty-one thousand, one hundred forty-four".