18163101 has 16 divisors (see below), whose sum is σ = 26496000. Its totient is φ = 10975920.

The previous prime is 18163081. The next prime is 18163109. The reversal of 18163101 is 10136181.

It is not a de Polignac number, because 18163101 - 2⁹ = 18162589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18163109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15916 + ... + 17018.

It is an arithmetic number, because the mean of its divisors is an integer number (1656000).

Almost surely, 2^18163101 is an apocalyptic number.

18163101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18163101 is a deficient number, since it is larger than the sum of its proper divisors (8332899).

18163101 is a wasteful number, since it uses less digits than its factorization.

18163101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 18163101 is about 4261.8189778544. The cubic root of 18163101 is about 262.8633263663.

Adding to 18163101 its reverse (10136181), we get a palindrome (28299282).

The spelling of 18163101 in words is "eighteen million, one hundred sixty-three thousand, one hundred one".