18054897 has 16 divisors (see below), whose sum is σ = 27863040. Its totient is φ = 10185552.

The previous prime is 18054893. The next prime is 18054917. The reversal of 18054897 is 79845081.

It is not a de Polignac number, because 18054897 - 2² = 18054893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18054893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3783 + ... + 7100.

It is an arithmetic number, because the mean of its divisors is an integer number (1741440).

Almost surely, 2^18054897 is an apocalyptic number.

It is an amenable number.

18054897 is a deficient number, since it is larger than the sum of its proper divisors (9808143).

18054897 is a wasteful number, since it uses less digits than its factorization.

18054897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10972.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 18054897 is about 4249.1054352652. The cubic root of 18054897 is about 262.3402965078.

The spelling of 18054897 in words is "eighteen million, fifty-four thousand, eight hundred ninety-seven".