115556447 has 2 divisors, whose sum is σ = 115556448. Its totient is φ = 115556446.

The previous prime is 115556431. The next prime is 115556479. The reversal of 115556447 is 744655511.

It is a weak prime.

It is an emirp because it is prime and its reverse (744655511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115556447 - 2⁴ = 115556431 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115556447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115556417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57778223 + 57778224.

It is an arithmetic number, because the mean of its divisors is an integer number (57778224).

Almost surely, 2^115556447 is an apocalyptic number.

115556447 is a deficient number, since it is larger than the sum of its proper divisors (1).

115556447 is an equidigital number, since it uses as much as digits as its factorization.

115556447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 38.

The square root of 115556447 is about 10749.7184614296. The cubic root of 115556447 is about 487.0774907717.

The spelling of 115556447 in words is "one hundred fifteen million, five hundred fifty-six thousand, four hundred forty-seven".