18106801 has 8 divisors (see below), whose sum is σ = 18686120. Its totient is φ = 17532288.

The previous prime is 18106787. The next prime is 18106831. The reversal of 18106801 is 10860181.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5688225 + 12418576 = 2385^2 + 3524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18106801 - 2⁹ = 18106289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18106831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7405 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (2335765).

Almost surely, 2^18106801 is an apocalyptic number.

It is an amenable number.

18106801 is a deficient number, since it is larger than the sum of its proper divisors (579319).

18106801 is a wasteful number, since it uses less digits than its factorization.

18106801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 18106801 is about 4255.2086905345. The cubic root of 18106801 is about 262.5914468994.

Adding to 18106801 its reverse (10860181), we get a palindrome (28966982).

The spelling of 18106801 in words is "eighteen million, one hundred six thousand, eight hundred one".