18041153 has 4 divisors (see below), whose sum is σ = 19428948. Its totient is φ = 16653360.

The previous prime is 18041099. The next prime is 18041159. The reversal of 18041153 is 35114081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35114081 = 41 ⋅856441.

It can be written as a sum of positive squares in 2 ways, for example, as 1329409 + 16711744 = 1153^2 + 4088^2 .

It is a cyclic number.

It is not a de Polignac number, because 18041153 - 2¹⁰ = 18040129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18041159) 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, 693878 + ... + 693903.

It is an arithmetic number, because the mean of its divisors is an integer number (4857237).

Almost surely, 2^18041153 is an apocalyptic number.

18041153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18041153 is a deficient number, since it is larger than the sum of its proper divisors (1387795).

18041153 is a wasteful number, since it uses less digits than its factorization.

18041153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387794.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 18041153 is about 4247.4878457743. The cubic root of 18041153 is about 262.2737121655.

The spelling of 18041153 in words is "eighteen million, forty-one thousand, one hundred fifty-three".