111434454 has 48 divisors (see below), whose sum is σ = 257192208. Its totient is φ = 36135072.

The previous prime is 111434447. The next prime is 111434459. The reversal of 111434454 is 454434111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111434459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14884 + ... + 21080.

It is an arithmetic number, because the mean of its divisors is an integer number (5358171).

Almost surely, 2^111434454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111434454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128596104).

111434454 is an abundant number, since it is smaller than the sum of its proper divisors (145757754).

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

111434454 is an equidigital number, since it uses as much as digits as its factorization.

111434454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251 (or 6239 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 111434454 is about 10556.2518916517. The cubic root of 111434454 is about 481.2157462773.

Adding to 111434454 its reverse (454434111), we get a palindrome (565868565).

The spelling of 111434454 in words is "one hundred eleven million, four hundred thirty-four thousand, four hundred fifty-four".