111144054 has 24 divisors (see below), whose sum is σ = 258580728. Its totient is φ = 31755360.

The previous prime is 111143999. The next prime is 111144067. The reversal of 111144054 is 450441111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111144054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188727 + ... + 189314.

It is an arithmetic number, because the mean of its divisors is an integer number (10774197).

Almost surely, 2^111144054 is an apocalyptic number.

111144054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

111144054 is an abundant number, since it is smaller than the sum of its proper divisors (147436674).

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

111144054 is a wasteful number, since it uses less digits than its factorization.

111144054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378060 (or 378053 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 111144054 is about 10542.4880365121. The cubic root of 111144054 is about 480.7973639417.

Adding to 111144054 its reverse (450441111), we get a palindrome (561585165).

The spelling of 111144054 in words is "one hundred eleven million, one hundred forty-four thousand, fifty-four".