1212316 has 24 divisors (see below), whose sum is σ = 2509920. Its totient is φ = 501312.

The previous prime is 1212301. The next prime is 1212319. The reversal of 1212316 is 6132121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 1558.

It is an arithmetic number, because the mean of its divisors is an integer number (104580).

2^1212316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254960).

1212316 is an abundant number, since it is smaller than the sum of its proper divisors (1297604).

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

1212316 is a wasteful number, since it uses less digits than its factorization.

1212316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1531 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 1212316 is about 1101.0522240112. The cubic root of 1212316 is about 106.6281675298.

Adding to 1212316 its reverse (6132121), we get a palindrome (7344437).

The spelling of 1212316 in words is "one million, two hundred twelve thousand, three hundred sixteen".