115530643 has 2 divisors, whose sum is σ = 115530644. Its totient is φ = 115530642.

The previous prime is 115530641. The next prime is 115530647. The reversal of 115530643 is 346035511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115530643 - 2¹ = 115530641 is a prime.

Together with 115530641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115530641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57765321 + 57765322.

It is an arithmetic number, because the mean of its divisors is an integer number (57765322).

Almost surely, 2^115530643 is an apocalyptic number.

115530643 is a deficient number, since it is larger than the sum of its proper divisors (1).

115530643 is an equidigital number, since it uses as much as digits as its factorization.

115530643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 115530643 is about 10748.5181769396. The cubic root of 115530643 is about 487.0412329267.

The spelling of 115530643 in words is "one hundred fifteen million, five hundred thirty thousand, six hundred forty-three".