115774993 has 2 divisors, whose sum is σ = 115774994. Its totient is φ = 115774992.

The previous prime is 115774979. The next prime is 115775039. The reversal of 115774993 is 399477511.

It is an a-pointer prime, because the next prime (115775039) can be obtained adding 115774993 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105329169 + 10445824 = 10263^2 + 3232^2 .

It is an emirp because it is prime and its reverse (399477511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115774993 - 2⁹ = 115774481 is a prime.

It is not a weakly prime, because it can be changed into another prime (115774973) 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, 57887496 + 57887497.

It is an arithmetic number, because the mean of its divisors is an integer number (57887497).

Almost surely, 2^115774993 is an apocalyptic number.

It is an amenable number.

115774993 is a deficient number, since it is larger than the sum of its proper divisors (1).

115774993 is an equidigital number, since it uses as much as digits as its factorization.

115774993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 46.

The square root of 115774993 is about 10759.8788561954. The cubic root of 115774993 is about 487.3843589831.

The spelling of 115774993 in words is "one hundred fifteen million, seven hundred seventy-four thousand, nine hundred ninety-three".