115831207 has 4 divisors (see below), whose sum is σ = 118525000. Its totient is φ = 113137416.

The previous prime is 115831181. The next prime is 115831211. The reversal of 115831207 is 702138511.

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 115831207 - 2¹¹ = 115829159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115831267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346832 + ... + 1346917.

It is an arithmetic number, because the mean of its divisors is an integer number (29631250).

Almost surely, 2^115831207 is an apocalyptic number.

115831207 is a deficient number, since it is larger than the sum of its proper divisors (2693793).

115831207 is an equidigital number, since it uses as much as digits as its factorization.

115831207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693792.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 115831207 is about 10762.4907433177. The cubic root of 115831207 is about 487.4632286093.

Adding to 115831207 its reverse (702138511), we get a palindrome (817969718).

The spelling of 115831207 in words is "one hundred fifteen million, eight hundred thirty-one thousand, two hundred seven".