115889605 has 8 divisors (see below), whose sum is σ = 149765112. Its totient is φ = 85579968.

The previous prime is 115889591. The next prime is 115889611. The reversal of 115889605 is 506988511.

It can be written as a sum of positive squares in 4 ways, for example, as 1442401 + 114447204 = 1201^2 + 10698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115889605 - 2⁹ = 115889093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891394 + ... + 891523.

It is an arithmetic number, because the mean of its divisors is an integer number (18720639).

Almost surely, 2^115889605 is an apocalyptic number.

It is an amenable number.

115889605 is a deficient number, since it is larger than the sum of its proper divisors (33875507).

115889605 is a wasteful number, since it uses less digits than its factorization.

115889605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782935.

The product of its (nonzero) digits is 86400, while the sum is 43.

The square root of 115889605 is about 10765.2034351423. The cubic root of 115889605 is about 487.5451354221.

The spelling of 115889605 in words is "one hundred fifteen million, eight hundred eighty-nine thousand, six hundred five".