18541113 has 8 divisors (see below), whose sum is σ = 24888000. Its totient is φ = 12277488.

The previous prime is 18541109. The next prime is 18541123. The reversal of 18541113 is 31114581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18541113 - 2² = 18541109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18541123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20293 + ... + 21186.

It is an arithmetic number, because the mean of its divisors is an integer number (3111000).

Almost surely, 2^18541113 is an apocalyptic number.

It is an amenable number.

18541113 is a deficient number, since it is larger than the sum of its proper divisors (6346887).

18541113 is a wasteful number, since it uses less digits than its factorization.

18541113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41631.

The product of its digits is 480, while the sum is 24.

The square root of 18541113 is about 4305.9392703567. The cubic root of 18541113 is about 264.6743977746.

Adding to 18541113 its reverse (31114581), we get a palindrome (49655694).

The spelling of 18541113 in words is "eighteen million, five hundred forty-one thousand, one hundred thirteen".