1215116 has 12 divisors (see below), whose sum is σ = 2430288. Its totient is φ = 520752.

The previous prime is 1215103. The next prime is 1215121. The reversal of 1215116 is 6115121.

1215116 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1215094 and 1215103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21671 + ... + 21726.

It is an arithmetic number, because the mean of its divisors is an integer number (202524).

2^1215116 is an apocalyptic number.

It is an amenable number.

1215116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1215116 is a wasteful number, since it uses less digits than its factorization.

1215116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43408 (or 43406 counting only the distinct ones).

The product of its digits is 60, while the sum is 17.

The square root of 1215116 is about 1102.3230016651. The cubic root of 1215116 is about 106.7101949083.

It can be divided in two parts, 12151 and 16, that added together give a cube (12167 = 23³).

The spelling of 1215116 in words is "one million, two hundred fifteen thousand, one hundred sixteen".