18101441 has 4 divisors (see below), whose sum is σ = 18110400. Its totient is φ = 18092484.

The previous prime is 18101431. The next prime is 18101467. The reversal of 18101441 is 14410181.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18101441 - 2¹⁴ = 18085057 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 (18101401) 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, 140 + ... + 6018.

It is an arithmetic number, because the mean of its divisors is an integer number (4527600).

Almost surely, 2^18101441 is an apocalyptic number.

It is an amenable number.

18101441 is a deficient number, since it is larger than the sum of its proper divisors (8959).

18101441 is an equidigital number, since it uses as much as digits as its factorization.

18101441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8958.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 18101441 is about 4254.5788275692. The cubic root of 18101441 is about 262.5655334492.

The spelling of 18101441 in words is "eighteen million, one hundred one thousand, four hundred forty-one".