18112755 has 16 divisors (see below), whose sum is σ = 29112480. Its totient is φ = 9616128.

The previous prime is 18112741. The next prime is 18112763. The reversal of 18112755 is 55721181.

It is not a de Polignac number, because 18112755 - 2⁹ = 18112243 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (1819530).

Almost surely, 2^18112755 is an apocalyptic number.

18112755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18112755 is a deficient number, since it is larger than the sum of its proper divisors (10999725).

18112755 is a wasteful number, since it uses less digits than its factorization.

18112755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510.

The product of its digits is 2800, while the sum is 30.

The square root of 18112755 is about 4255.9082461914. The cubic root of 18112755 is about 262.6202261067.

The spelling of 18112755 in words is "eighteen million, one hundred twelve thousand, seven hundred fifty-five".