2231117 has 6 divisors (see below), whose sum is σ = 2595438. Its totient is φ = 1912344.

The previous prime is 2231107. The next prime is 2231129. The reversal of 2231117 is 7111322.

It can be written as a sum of positive squares in only one way, i.e., 1901641 + 329476 = 1379^2 + 574^2 .

It is not a de Polignac number, because 2231117 - 2⁸ = 2230861 is a prime.

It is a super-3 number, since 3×2231117³ = 33318718608999235839, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231095 and 2231104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22718 + ... + 22815.

It is an arithmetic number, because the mean of its divisors is an integer number (432573).

2^2231117 is an apocalyptic number.

It is an amenable number.

2231117 is a deficient number, since it is larger than the sum of its proper divisors (364321).

2231117 is an equidigital number, since it uses as much as digits as its factorization.

2231117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45547 (or 45540 counting only the distinct ones).

The product of its digits is 84, while the sum is 17.

The square root of 2231117 is about 1493.6924047474. The cubic root of 2231117 is about 130.6694656430.

Adding to 2231117 its reverse (7111322), we get a palindrome (9342439).

The spelling of 2231117 in words is "two million, two hundred thirty-one thousand, one hundred seventeen".