115089609 has 16 divisors (see below), whose sum is σ = 162708480. Its totient is φ = 72111360.

The previous prime is 115089599. The next prime is 115089613. The reversal of 115089609 is 906980511.

It is not a de Polignac number, because 115089609 - 2¹² = 115085513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115089209) 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, 53464 + ... + 55574.

It is an arithmetic number, because the mean of its divisors is an integer number (10169280).

Almost surely, 2^115089609 is an apocalyptic number.

It is an amenable number.

115089609 is a deficient number, since it is larger than the sum of its proper divisors (47618871).

115089609 is a wasteful number, since it uses less digits than its factorization.

115089609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 115089609 is about 10727.9825223571. The cubic root of 115089609 is about 486.4206885952.

The spelling of 115089609 in words is "one hundred fifteen million, eighty-nine thousand, six hundred nine".