111673 has 4 divisors (see below), whose sum is σ = 118260. Its totient is φ = 105088.

The previous prime is 111667. The next prime is 111697. The reversal of 111673 is 376111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376111 = 457 ⋅823.

It can be written as a sum of positive squares in 2 ways, for example, as 94249 + 17424 = 307^2 + 132^2 .

It is a cyclic number.

It is not a de Polignac number, because 111673 - 2⁵ = 111641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111673.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111623) 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, 3268 + ... + 3301.

It is an arithmetic number, because the mean of its divisors is an integer number (29565).

2¹¹¹⁶⁷³ is an apocalyptic number.

It is an amenable number.

111673 is a deficient number, since it is larger than the sum of its proper divisors (6587).

111673 is an equidigital number, since it uses as much as digits as its factorization.

111673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6586.

The product of its digits is 126, while the sum is 19.

The square root of 111673 is about 334.1751038004. The cubic root of 111673 is about 48.1558878565.

Adding to 111673 its reverse (376111), we get a palindrome (487784).

It can be divided in two parts, 111 and 673, that added together give a square (784 = 28²).

The spelling of 111673 in words is "one hundred eleven thousand, six hundred seventy-three".