115782212 has 48 divisors (see below), whose sum is σ = 250911360. Its totient is φ = 45522432.

The previous prime is 115782211. The next prime is 115782301. The reversal of 115782212 is 212287511.

It is a super-2 number, since 2×115782212² = 26811041231225888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115782211) 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 15 ways as a sum of consecutive naturals, for example, 64268 + ... + 66044.

It is an arithmetic number, because the mean of its divisors is an integer number (5227320).

Almost surely, 2^115782212 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 115782212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125455680).

115782212 is an abundant number, since it is smaller than the sum of its proper divisors (135129148).

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

115782212 is a wasteful number, since it uses less digits than its factorization.

115782212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1978 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 115782212 is about 10760.2143101334. The cubic root of 115782212 is about 487.3944888464.

The spelling of 115782212 in words is "one hundred fifteen million, seven hundred eighty-two thousand, two hundred twelve".