18041299 has 4 divisors (see below), whose sum is σ = 18337120. Its totient is φ = 17745480.

The previous prime is 18041263. The next prime is 18041323. The reversal of 18041299 is 99214081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99214081 = 73 ⋅1359097.

It is a cyclic number.

It is not a de Polignac number, because 18041299 - 2¹¹ = 18039251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18041249) 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, 147819 + ... + 147940.

It is an arithmetic number, because the mean of its divisors is an integer number (4584280).

Almost surely, 2^18041299 is an apocalyptic number.

18041299 is a deficient number, since it is larger than the sum of its proper divisors (295821).

18041299 is an equidigital number, since it uses as much as digits as its factorization.

18041299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295820.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 18041299 is about 4247.5050323690. The cubic root of 18041299 is about 262.2744196565.

The spelling of 18041299 in words is "eighteen million, forty-one thousand, two hundred ninety-nine".