111402 has 16 divisors (see below), whose sum is σ = 247680. Its totient is φ = 37116.

The previous prime is 111373. The next prime is 111409. The reversal of 111402 is 204111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (15480).

2¹¹¹⁴⁰² is an apocalyptic number.

111402 is an abundant number, since it is smaller than the sum of its proper divisors (136278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111402 is a wasteful number, since it uses less digits than its factorization.

111402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 111402 is about 333.7693814597. The cubic root of 111402 is about 48.1169025562.

Adding to 111402 its reverse (204111), we get a palindrome (315513).

The spelling of 111402 in words is "one hundred eleven thousand, four hundred two", and thus it is an iban number.