115212512 has 24 divisors (see below), whose sum is σ = 227321136. Its totient is φ = 57480192.

The previous prime is 115212511. The next prime is 115212527. The reversal of 115212512 is 215212511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115212511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11888 + ... + 19280.

It is an arithmetic number, because the mean of its divisors is an integer number (9471714).

Almost surely, 2^115212512 is an apocalyptic number.

It is an amenable number.

115212512 is a deficient number, since it is larger than the sum of its proper divisors (112108624).

115212512 is an equidigital number, since it uses as much as digits as its factorization.

115212512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890 (or 7882 counting only the distinct ones).

The product of its digits is 200, while the sum is 20.

The square root of 115212512 is about 10733.7091445595. The cubic root of 115212512 is about 486.5937748673.

Subtracting 115212512 from its reverse (215212511), we obtain a palindrome (99999999).

The spelling of 115212512 in words is "one hundred fifteen million, two hundred twelve thousand, five hundred twelve".