18104101 has 2 divisors, whose sum is σ = 18104102. Its totient is φ = 18104100.

The previous prime is 18104089. The next prime is 18104123. The reversal of 18104101 is 10140181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17859076 + 245025 = 4226^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 18104101 - 2¹¹ = 18102053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18102101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9052050 + 9052051.

It is an arithmetic number, because the mean of its divisors is an integer number (9052051).

Almost surely, 2^18104101 is an apocalyptic number.

It is an amenable number.

18104101 is a deficient number, since it is larger than the sum of its proper divisors (1).

18104101 is an equidigital number, since it uses as much as digits as its factorization.

18104101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 18104101 is about 4254.8914204713. The cubic root of 18104101 is about 262.5783941216.

Adding to 18104101 its reverse (10140181), we get a palindrome (28244282).

The spelling of 18104101 in words is "eighteen million, one hundred four thousand, one hundred one".