111112454 has 4 divisors (see below), whose sum is σ = 166668684. Its totient is φ = 55556226.

The previous prime is 111112451. The next prime is 111112481. The reversal of 111112454 is 454211111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454211111 = 5009 ⋅90679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27778112 + ... + 27778115.

It is an arithmetic number, because the mean of its divisors is an integer number (41667171).

Almost surely, 2^111112454 is an apocalyptic number.

111112454 is a deficient number, since it is larger than the sum of its proper divisors (55556230).

111112454 is an equidigital number, since it uses as much as digits as its factorization.

111112454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55556229.

The product of its digits is 160, while the sum is 20.

The square root of 111112454 is about 10540.9892325151. The cubic root of 111112454 is about 480.7517935423.

Adding to 111112454 its reverse (454211111), we get a palindrome (565323565).

The spelling of 111112454 in words is "one hundred eleven million, one hundred twelve thousand, four hundred fifty-four".