1223252316 has 144 divisors (see below), whose sum is σ = 3663249408. Its totient is φ = 339292800.

The previous prime is 1223252311. The next prime is 1223252321. The reversal of 1223252316 is 6132523221.

It is a happy number.

1223252316 is a `hidden beast` number, since 1 + 22 + 325 + 2 + 316 = 666.

It is an interprime number because it is at equal distance from previous prime (1223252311) and next prime (1223252321).

It is a self number, because there is not a number n which added to its sum of digits gives 1223252316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223252311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 652861 + ... + 654731.

It is an arithmetic number, because the mean of its divisors is an integer number (25439232).

Almost surely, 2^1223252316 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 1223252316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831624704).

1223252316 is an abundant number, since it is smaller than the sum of its proper divisors (2439997092).

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

1223252316 is a wasteful number, since it uses less digits than its factorization.

1223252316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2027 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1223252316 is about 34975.0241744019. The cubic root of 1223252316 is about 1069.4783948499.

Adding to 1223252316 its reverse (6132523221), we get a palindrome (7355775537).

The spelling of 1223252316 in words is "one billion, two hundred twenty-three million, two hundred fifty-two thousand, three hundred sixteen".