115139743 has 2 divisors, whose sum is σ = 115139744. Its totient is φ = 115139742.

The previous prime is 115139741. The next prime is 115139749. The reversal of 115139743 is 347931511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115139743 - 2¹ = 115139741 is a prime.

Together with 115139741, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 115139699 and 115139708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115139741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57569871 + 57569872.

It is an arithmetic number, because the mean of its divisors is an integer number (57569872).

Almost surely, 2^115139743 is an apocalyptic number.

115139743 is a deficient number, since it is larger than the sum of its proper divisors (1).

115139743 is an equidigital number, since it uses as much as digits as its factorization.

115139743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 34.

The square root of 115139743 is about 10730.3188675826. The cubic root of 115139743 is about 486.4913079874.

The spelling of 115139743 in words is "one hundred fifteen million, one hundred thirty-nine thousand, seven hundred forty-three".