1818135 has 24 divisors (see below), whose sum is σ = 3438864. Its totient is φ = 881280.

The previous prime is 1818109. The next prime is 1818151. The reversal of 1818135 is 5318181.

It is not a de Polignac number, because 1818135 - 2¹² = 1814039 is a prime.

It is a super-2 number, since 2×1818135² = 6611229756450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1818099 and 1818108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1342 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (143286).

2^1818135 is an apocalyptic number.

1818135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1818135 is a deficient number, since it is larger than the sum of its proper divisors (1620729).

1818135 is a wasteful number, since it uses less digits than its factorization.

1818135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3692 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 1818135 is about 1348.3823641683. The cubic root of 1818135 is about 122.0511968229.

It can be divided in two parts, 1818 and 135, that added together give a triangular number (1953 = T₆₂).

The spelling of 1818135 in words is "one million, eight hundred eighteen thousand, one hundred thirty-five".