111773 has 2 divisors, whose sum is σ = 111774. Its totient is φ = 111772.

The previous prime is 111767. The next prime is 111779. The reversal of 111773 is 377111.

It is a balanced prime because it is at equal distance from previous prime (111767) and next prime (111779).

It can be written as a sum of positive squares in only one way, i.e., 80089 + 31684 = 283^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 111773 - 2¹⁰ = 110749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55886 + 55887.

It is an arithmetic number, because the mean of its divisors is an integer number (55887).

2¹¹¹⁷⁷³ is an apocalyptic number.

It is an amenable number.

111773 is a deficient number, since it is larger than the sum of its proper divisors (1).

111773 is an equidigital number, since it uses as much as digits as its factorization.

111773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147, while the sum is 20.

The square root of 111773 is about 334.3246924772. The cubic root of 111773 is about 48.1702576448.

Adding to 111773 its reverse (377111), we get a palindrome (488884).

It can be divided in two parts, 11 and 1773, that multiplied together give a triangular number (19503 = T₁₉₇).

The spelling of 111773 in words is "one hundred eleven thousand, seven hundred seventy-three", and thus it is an iban number.