115343993 has 2 divisors, whose sum is σ = 115343994. Its totient is φ = 115343992.

The previous prime is 115343971. The next prime is 115344023. The reversal of 115343993 is 399343511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93934864 + 21409129 = 9692^2 + 4627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115343993 is a prime.

It is not a weakly prime, because it can be changed into another prime (115343903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57671996 + 57671997.

It is an arithmetic number, because the mean of its divisors is an integer number (57671997).

Almost surely, 2^115343993 is an apocalyptic number.

It is an amenable number.

115343993 is a deficient number, since it is larger than the sum of its proper divisors (1).

115343993 is an equidigital number, since it uses as much as digits as its factorization.

115343993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 38.

The square root of 115343993 is about 10739.8320750373. The cubic root of 115343993 is about 486.7788054488.

The spelling of 115343993 in words is "one hundred fifteen million, three hundred forty-three thousand, nine hundred ninety-three".