1216108 has 12 divisors (see below), whose sum is σ = 2164680. Its totient is φ = 597632.

The previous prime is 1216091. The next prime is 1216109. The reversal of 1216108 is 8016121.

It is not an unprimeable number, because it can be changed into a prime (1216109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2341 + ... + 2812.

It is an arithmetic number, because the mean of its divisors is an integer number (180390).

2^1216108 is an apocalyptic number.

It is an amenable number.

1216108 is a deficient number, since it is larger than the sum of its proper divisors (948572).

1216108 is a wasteful number, since it uses less digits than its factorization.

1216108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5216 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1216108 is about 1102.7728687268. The cubic root of 1216108 is about 106.7392258047.

It can be divided in two parts, 1216 and 108, that multiplied together give a triangular number (131328 = T₅₁₂).

The spelling of 1216108 in words is "one million, two hundred sixteen thousand, one hundred eight".