111478 has 8 divisors (see below), whose sum is σ = 168840. Its totient is φ = 55200.

The previous prime is 111467. The next prime is 111487. The reversal of 111478 is 874111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

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, 78 + ... + 478.

It is an arithmetic number, because the mean of its divisors is an integer number (21105).

2¹¹¹⁴⁷⁸ is an apocalyptic number.

111478 is a deficient number, since it is larger than the sum of its proper divisors (57362).

111478 is a wasteful number, since it uses less digits than its factorization.

111478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its digits is 224, while the sum is 22.

The square root of 111478 is about 333.8832131150. The cubic root of 111478 is about 48.1278420765.

Adding to 111478 its reverse (874111), we get a palindrome (985589).

The spelling of 111478 in words is "one hundred eleven thousand, four hundred seventy-eight".