18371053 has 4 divisors (see below), whose sum is σ = 18416380. Its totient is φ = 18325728.

The previous prime is 18371051. The next prime is 18371063. The reversal of 18371053 is 35017381.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9715689 + 8655364 = 3117^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 18371053 - 2¹ = 18371051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18371051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22050 + ... + 22867.

It is an arithmetic number, because the mean of its divisors is an integer number (4604095).

Almost surely, 2^18371053 is an apocalyptic number.

It is an amenable number.

18371053 is a deficient number, since it is larger than the sum of its proper divisors (45327).

18371053 is an equidigital number, since it uses as much as digits as its factorization.

18371053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45326.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 18371053 is about 4286.1466377155. The cubic root of 18371053 is about 263.8627088800.

The spelling of 18371053 in words is "eighteen million, three hundred seventy-one thousand, fifty-three".