18481053 has 16 divisors (see below), whose sum is σ = 26777600. Its totient is φ = 11294640.

The previous prime is 18481051. The next prime is 18481061. The reversal of 18481053 is 35018481.

It is not a de Polignac number, because 18481053 - 2¹ = 18481051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18481053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18481051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3463 + ... + 6996.

It is an arithmetic number, because the mean of its divisors is an integer number (1673600).

Almost surely, 2^18481053 is an apocalyptic number.

It is an amenable number.

18481053 is a deficient number, since it is larger than the sum of its proper divisors (8296547).

18481053 is a wasteful number, since it uses less digits than its factorization.

18481053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 18481053 is about 4298.9595252805. The cubic root of 18481053 is about 264.3883031271.

The spelling of 18481053 in words is "eighteen million, four hundred eighty-one thousand, fifty-three".