1218108 has 24 divisors (see below), whose sum is σ = 2878848. Its totient is φ = 400816.

The previous prime is 1218089. The next prime is 1218121. The reversal of 1218108 is 8018121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385 + ... + 1607.

It is an arithmetic number, because the mean of its divisors is an integer number (119952).

2^1218108 is an apocalyptic number.

It is an amenable number.

1218108 is an abundant number, since it is smaller than the sum of its proper divisors (1660740).

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

1218108 is a wasteful number, since it uses less digits than its factorization.

1218108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 1218108 is about 1103.6793012465. The cubic root of 1218108 is about 106.7977078721.

It can be divided in two parts, 1218 and 108, that added together give a triangular number (1326 = T₅₁).

The spelling of 1218108 in words is "one million, two hundred eighteen thousand, one hundred eight".