18231041 has 4 divisors (see below), whose sum is σ = 18259284. Its totient is φ = 18202800.

The previous prime is 18231029. The next prime is 18231049. The reversal of 18231041 is 14013281.

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 16974400 + 1256641 = 4120^2 + 1121^2 .

It is a cyclic number.

It is not a de Polignac number, because 18231041 - 2¹⁸ = 17968897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18231049) 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, 13130 + ... + 14451.

It is an arithmetic number, because the mean of its divisors is an integer number (4564821).

Almost surely, 2^18231041 is an apocalyptic number.

It is an amenable number.

18231041 is a deficient number, since it is larger than the sum of its proper divisors (28243).

18231041 is an equidigital number, since it uses as much as digits as its factorization.

18231041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28242.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 18231041 is about 4269.7823129523. The cubic root of 18231041 is about 263.1906697558.

The spelling of 18231041 in words is "eighteen million, two hundred thirty-one thousand, forty-one".