115355543 has 2 divisors, whose sum is σ = 115355544. Its totient is φ = 115355542.

The previous prime is 115355503. The next prime is 115355551. The reversal of 115355543 is 345553511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115355543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115355503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57677771 + 57677772.

It is an arithmetic number, because the mean of its divisors is an integer number (57677772).

Almost surely, 2^115355543 is an apocalyptic number.

115355543 is a deficient number, since it is larger than the sum of its proper divisors (1).

115355543 is an equidigital number, since it uses as much as digits as its factorization.

115355543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22500, while the sum is 32.

The square root of 115355543 is about 10740.3697794815. The cubic root of 115355543 is about 486.7950528129.

The spelling of 115355543 in words is "one hundred fifteen million, three hundred fifty-five thousand, five hundred forty-three".