115747212 has 72 divisors (see below), whose sum is σ = 317444400. Its totient is φ = 32726400.

The previous prime is 115747193. The next prime is 115747213. The reversal of 115747212 is 212747511.

It is a self number, because there is not a number n which added to its sum of digits gives 115747212.

It is not an unprimeable number, because it can be changed into a prime (115747213) 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 23 ways as a sum of consecutive naturals, for example, 58414 + ... + 60362.

It is an arithmetic number, because the mean of its divisors is an integer number (4408950).

Almost surely, 2^115747212 is an apocalyptic number.

115747212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115747212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158722200).

115747212 is an abundant number, since it is smaller than the sum of its proper divisors (201697188).

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

115747212 is a wasteful number, since it uses less digits than its factorization.

115747212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2062 counting only the distinct ones).

The product of its digits is 3920, while the sum is 30.

The square root of 115747212 is about 10758.5878255466. The cubic root of 115747212 is about 487.3453721298.

The spelling of 115747212 in words is "one hundred fifteen million, seven hundred forty-seven thousand, two hundred twelve".