115564133 has 2 divisors, whose sum is σ = 115564134. Its totient is φ = 115564132.

The previous prime is 115564129. The next prime is 115564157. The reversal of 115564133 is 331465511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77827684 + 37736449 = 8822^2 + 6143^2 .

It is a cyclic number.

It is not a de Polignac number, because 115564133 - 2² = 115564129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 115564096 and 115564105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115564193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57782066 + 57782067.

It is an arithmetic number, because the mean of its divisors is an integer number (57782067).

Almost surely, 2^115564133 is an apocalyptic number.

It is an amenable number.

115564133 is a deficient number, since it is larger than the sum of its proper divisors (1).

115564133 is an equidigital number, since it uses as much as digits as its factorization.

115564133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 115564133 is about 10750.0759532201. The cubic root of 115564133 is about 487.0882895190.

The spelling of 115564133 in words is "one hundred fifteen million, five hundred sixty-four thousand, one hundred thirty-three".