115447331 has 2 divisors, whose sum is σ = 115447332. Its totient is φ = 115447330.

The previous prime is 115447313. The next prime is 115447333. The reversal of 115447331 is 133744511.

Together with previous prime (115447313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115447331 - 2¹⁰ = 115446307 is a prime.

It is a super-2 number, since 2×115447331² = 26656172470047122, which contains 22 as substring.

Together with 115447333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 115447294 and 115447303.

It is not a weakly prime, because it can be changed into another prime (115447333) 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 as a sum of consecutive naturals, namely, 57723665 + 57723666.

It is an arithmetic number, because the mean of its divisors is an integer number (57723666).

Almost surely, 2^115447331 is an apocalyptic number.

115447331 is a deficient number, since it is larger than the sum of its proper divisors (1).

115447331 is an equidigital number, since it uses as much as digits as its factorization.

115447331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 115447331 is about 10744.6419670457. The cubic root of 115447331 is about 486.9241322869.

The spelling of 115447331 in words is "one hundred fifteen million, four hundred forty-seven thousand, three hundred thirty-one".