1818117 has 12 divisors (see below), whose sum is σ = 3001440. Its totient is φ = 1038888.

The previous prime is 1818109. The next prime is 1818151. The reversal of 1818117 is 7118181.

It is not a de Polignac number, because 1818117 - 2³ = 1818109 is a prime.

1818117 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14367 + ... + 14492.

It is an arithmetic number, because the mean of its divisors is an integer number (250120).

2^1818117 is an apocalyptic number.

It is an amenable number.

1818117 is a deficient number, since it is larger than the sum of its proper divisors (1183323).

1818117 is a wasteful number, since it uses less digits than its factorization.

1818117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28872 (or 28869 counting only the distinct ones).

The product of its digits is 448, while the sum is 27.

The square root of 1818117 is about 1348.3756894872. The cubic root of 1818117 is about 122.0507940423.

The spelling of 1818117 in words is "one million, eight hundred eighteen thousand, one hundred seventeen".