1213116 has 24 divisors (see below), whose sum is σ = 2897664. Its totient is φ = 394800.

The previous prime is 1213109. The next prime is 1213129. The reversal of 1213116 is 6113121.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1213095 and 1213104.

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, 660 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (120736).

2^1213116 is an apocalyptic number.

It is an amenable number.

1213116 is an abundant number, since it is smaller than the sum of its proper divisors (1684548).

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

1213116 is a wasteful number, since it uses less digits than its factorization.

1213116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401 (or 2399 counting only the distinct ones).

The product of its digits is 36, while the sum is 15.

The square root of 1213116 is about 1101.4154529513. The cubic root of 1213116 is about 106.6516168003.

Adding to 1213116 its reverse (6113121), we get a palindrome (7326237).

The spelling of 1213116 in words is "one million, two hundred thirteen thousand, one hundred sixteen".