115861823 has 24 divisors (see below), whose sum is σ = 150480000. Its totient is φ = 88164720.

The previous prime is 115861819. The next prime is 115861831. The reversal of 115861823 is 328168511.

It is not a de Polignac number, because 115861823 - 2² = 115861819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115861853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20678 + ... + 25676.

It is an arithmetic number, because the mean of its divisors is an integer number (6270000).

Almost surely, 2^115861823 is an apocalyptic number.

115861823 is a deficient number, since it is larger than the sum of its proper divisors (34618177).

115861823 is a wasteful number, since it uses less digits than its factorization.

115861823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067 (or 5060 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 115861823 is about 10763.9129966755. The cubic root of 115861823 is about 487.5061728782.

The spelling of 115861823 in words is "one hundred fifteen million, eight hundred sixty-one thousand, eight hundred twenty-three".