115956643 has 16 divisors (see below), whose sum is σ = 134400384. Its totient is φ = 98872960.

The previous prime is 115956637. The next prime is 115956667. The reversal of 115956643 is 346659511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115956643 - 2⁹ = 115956131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115956596 and 115956605.

It is not an unprimeable number, because it can be changed into a prime (115956683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63996 + ... + 65782.

It is an arithmetic number, because the mean of its divisors is an integer number (8400024).

Almost surely, 2^115956643 is an apocalyptic number.

115956643 is a deficient number, since it is larger than the sum of its proper divisors (18443741).

115956643 is a wasteful number, since it uses less digits than its factorization.

115956643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162.

The product of its digits is 97200, while the sum is 40.

The square root of 115956643 is about 10768.3166279600. The cubic root of 115956643 is about 487.6391264539.

The spelling of 115956643 in words is "one hundred fifteen million, nine hundred fifty-six thousand, six hundred forty-three".