111349 has 4 divisors (see below), whose sum is σ = 127264. Its totient is φ = 95436.

The previous prime is 111347. The next prime is 111373. The reversal of 111349 is 943111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 943111 = 13 ⋅72547.

It is a cyclic number.

It is not a de Polignac number, because 111349 - 2¹ = 111347 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7947 + ... + 7960.

It is an arithmetic number, because the mean of its divisors is an integer number (31816).

2¹¹¹³⁴⁹ is an apocalyptic number.

It is an amenable number.

111349 is a deficient number, since it is larger than the sum of its proper divisors (15915).

111349 is an equidigital number, since it uses as much as digits as its factorization.

111349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15914.

The product of its digits is 108, while the sum is 19.

The square root of 111349 is about 333.6899758758. The cubic root of 111349 is about 48.1092707352.

The spelling of 111349 in words is "one hundred eleven thousand, three hundred forty-nine".