115439009 has 8 divisors (see below), whose sum is σ = 136186368. Its totient is φ = 95755680.

The previous prime is 115438991. The next prime is 115439039. The reversal of 115439009 is 900934511.

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 115439009 - 2¹⁶ = 115373473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115439039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265772 + ... + 266205.

It is an arithmetic number, because the mean of its divisors is an integer number (17023296).

Almost surely, 2^115439009 is an apocalyptic number.

It is an amenable number.

115439009 is a deficient number, since it is larger than the sum of its proper divisors (20747359).

115439009 is an equidigital number, since it uses as much as digits as its factorization.

115439009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532015.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 115439009 is about 10744.2546972789. The cubic root of 115439009 is about 486.9124320597.

The spelling of 115439009 in words is "one hundred fifteen million, four hundred thirty-nine thousand, nine".