116521312 has 48 divisors (see below), whose sum is σ = 247145472. Its totient is φ = 53919360.

The previous prime is 116521309. The next prime is 116521313. The reversal of 116521312 is 213125611.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116521313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20263 + ... + 25369.

It is an arithmetic number, because the mean of its divisors is an integer number (5148864).

Almost surely, 2^116521312 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 116521312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123572736).

116521312 is an abundant number, since it is smaller than the sum of its proper divisors (130624160).

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

116521312 is a wasteful number, since it uses less digits than its factorization.

116521312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171 (or 5163 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 116521312 is about 10794.5037866499. The cubic root of 116521312 is about 488.4293900534.

Adding to 116521312 its reverse (213125611), we get a palindrome (329646923).

The spelling of 116521312 in words is "one hundred sixteen million, five hundred twenty-one thousand, three hundred twelve".