111407 has 4 divisors (see below), whose sum is σ = 114456. Its totient is φ = 108360.

The previous prime is 111373. The next prime is 111409. The reversal of 111407 is 704111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111391 and 111400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111409) 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, 1469 + ... + 1542.

It is an arithmetic number, because the mean of its divisors is an integer number (28614).

2¹¹¹⁴⁰⁷ is an apocalyptic number.

111407 is a deficient number, since it is larger than the sum of its proper divisors (3049).

111407 is an equidigital number, since it uses as much as digits as its factorization.

111407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 111407 is about 333.7768715774. The cubic root of 111407 is about 48.1176224144.

Adding to 111407 its reverse (704111), we get a palindrome (815518).

Subtracting 111407 from its reverse (704111), we obtain a cube (592704 = 84³).

The spelling of 111407 in words is "one hundred eleven thousand, four hundred seven", and thus it is an iban number.