18162103 has 8 divisors (see below), whose sum is σ = 19278000. Its totient is φ = 17051520.

The previous prime is 18162071. The next prime is 18162107. The reversal of 18162103 is 30126181.

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 18162103 - 2⁵ = 18162071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18162107) 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, 7413 + ... + 9553.

It is an arithmetic number, because the mean of its divisors is an integer number (2409750).

Almost surely, 2^18162103 is an apocalyptic number.

18162103 is a deficient number, since it is larger than the sum of its proper divisors (1115897).

18162103 is a wasteful number, since it uses less digits than its factorization.

18162103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 18162103 is about 4261.7018900904. The cubic root of 18162103 is about 262.8585117992.

Adding to 18162103 its reverse (30126181), we get a palindrome (48288284).

The spelling of 18162103 in words is "eighteen million, one hundred sixty-two thousand, one hundred three".