18006101 has 4 divisors (see below), whose sum is σ = 18014592. Its totient is φ = 17997612.

The previous prime is 18006073. The next prime is 18006113. The reversal of 18006101 is 10160081.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10160081 = 67 ⋅151643.

It is a cyclic number.

It is not a de Polignac number, because 18006101 - 2²² = 13811797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18006101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18006701) 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, 1946 + ... + 6308.

It is an arithmetic number, because the mean of its divisors is an integer number (4503648).

Almost surely, 2^18006101 is an apocalyptic number.

It is an amenable number.

18006101 is a deficient number, since it is larger than the sum of its proper divisors (8491).

18006101 is an equidigital number, since it uses as much as digits as its factorization.

18006101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 18006101 is about 4243.3596359489. The cubic root of 18006101 is about 262.1037456007.

Adding to 18006101 its reverse (10160081), we get a palindrome (28166182).

The spelling of 18006101 in words is "eighteen million, six thousand, one hundred one".