1286118 has 40 divisors (see below), whose sum is σ = 3057912. Its totient is φ = 402624.

The previous prime is 1286107. The next prime is 1286119. The reversal of 1286118 is 8116821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1286091 and 1286100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2521 + ... + 2987.

2^1286118 is an apocalyptic number.

1286118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1286118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528956).

1286118 is an abundant number, since it is smaller than the sum of its proper divisors (1771794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1286118 is a wasteful number, since it uses less digits than its factorization.

1286118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 489 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 1286118 is about 1134.0714263220. The cubic root of 1286118 is about 108.7494173572.

The spelling of 1286118 in words is "one million, two hundred eighty-six thousand, one hundred eighteen".