115212443 has 4 divisors (see below), whose sum is σ = 115791600. Its totient is φ = 114633288.

The previous prime is 115212439. The next prime is 115212467. The reversal of 115212443 is 344212511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115212443 - 2² = 115212439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115212743) 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 3 ways as a sum of consecutive naturals, for example, 289280 + ... + 289677.

It is an arithmetic number, because the mean of its divisors is an integer number (28947900).

Almost surely, 2^115212443 is an apocalyptic number.

115212443 is a deficient number, since it is larger than the sum of its proper divisors (579157).

115212443 is an equidigital number, since it uses as much as digits as its factorization.

115212443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579156.

The product of its digits is 960, while the sum is 23.

The square root of 115212443 is about 10733.7059303858. The cubic root of 115212443 is about 486.5936777280.

Adding to 115212443 its reverse (344212511), we get a palindrome (459424954).

The spelling of 115212443 in words is "one hundred fifteen million, two hundred twelve thousand, four hundred forty-three".