115566147 has 24 divisors (see below), whose sum is σ = 170749488. Its totient is φ = 75297600.

The previous prime is 115566127. The next prime is 115566161. The reversal of 115566147 is 741665511.

It is a happy number.

115566147 is a `hidden beast` number, since 1 + 1 + 556 + 61 + 47 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-115566147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115566127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98788 + ... + 99950.

It is an arithmetic number, because the mean of its divisors is an integer number (7114562).

Almost surely, 2^115566147 is an apocalyptic number.

115566147 is a deficient number, since it is larger than the sum of its proper divisors (55183341).

115566147 is a wasteful number, since it uses less digits than its factorization.

115566147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1408 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 115566147 is about 10750.1696265687. The cubic root of 115566147 is about 487.0911190881.

The spelling of 115566147 in words is "one hundred fifteen million, five hundred sixty-six thousand, one hundred forty-seven".