1326253116 has 24 divisors (see below), whose sum is σ = 3095200080. Its totient is φ = 441997312.

The previous prime is 1326253109. The next prime is 1326253139. The reversal of 1326253116 is 6113526231.

It is a congruent number.

It is an unprimeable number.

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, 89980 + ... + 103676.

It is an arithmetic number, because the mean of its divisors is an integer number (128966670).

Almost surely, 2^1326253116 is an apocalyptic number.

It is an amenable number.

1326253116 is an abundant number, since it is smaller than the sum of its proper divisors (1768946964).

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

1326253116 is a wasteful number, since it uses less digits than its factorization.

1326253116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21773 (or 21771 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 1326253116 is about 36417.7582506117. The cubic root of 1326253116 is about 1098.6907607962.

Adding to 1326253116 its reverse (6113526231), we get a palindrome (7439779347).

The spelling of 1326253116 in words is "one billion, three hundred twenty-six million, two hundred fifty-three thousand, one hundred sixteen".