111140455 has 4 divisors (see below), whose sum is σ = 133368552. Its totient is φ = 88912360.

The previous prime is 111140437. The next prime is 111140479. The reversal of 111140455 is 554041111.

It is a happy number.

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

It is not a de Polignac number, because 111140455 - 2⁷ = 111140327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11114041 + ... + 11114050.

It is an arithmetic number, because the mean of its divisors is an integer number (33342138).

Almost surely, 2^111140455 is an apocalyptic number.

111140455 is a deficient number, since it is larger than the sum of its proper divisors (22228097).

111140455 is an equidigital number, since it uses as much as digits as its factorization.

111140455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22228096.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 111140455 is about 10542.3173448725. The cubic root of 111140455 is about 480.7921742552.

Adding to 111140455 its reverse (554041111), we get a palindrome (665181566).

The spelling of 111140455 in words is "one hundred eleven million, one hundred forty thousand, four hundred fifty-five".