115390943 has 2 divisors, whose sum is σ = 115390944. Its totient is φ = 115390942.

The previous prime is 115390927. The next prime is 115390981. The reversal of 115390943 is 349093511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115390943 - 2⁴ = 115390927 is a prime.

It is a Chen prime.

It is equal to p_6593705 and since 115390943 and 6593705 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115390993) 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, 57695471 + 57695472.

It is an arithmetic number, because the mean of its divisors is an integer number (57695472).

Almost surely, 2^115390943 is an apocalyptic number.

115390943 is a deficient number, since it is larger than the sum of its proper divisors (1).

115390943 is an equidigital number, since it uses as much as digits as its factorization.

115390943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 115390943 is about 10742.0176410207. The cubic root of 115390943 is about 486.8448431739.

The spelling of 115390943 in words is "one hundred fifteen million, three hundred ninety thousand, nine hundred forty-three".