115409065 has 8 divisors (see below), whose sum is σ = 138889800. Its totient is φ = 92061312.

The previous prime is 115409057. The next prime is 115409083. The reversal of 115409065 is 560904511.

It can be written as a sum of positive squares in 4 ways, for example, as 38601369 + 76807696 = 6213^2 + 8764^2 .

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 115409065 - 2³ = 115409057 is a prime.

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, 31324 + ... + 34813.

It is an arithmetic number, because the mean of its divisors is an integer number (17361225).

Almost surely, 2^115409065 is an apocalyptic number.

It is an amenable number.

115409065 is a deficient number, since it is larger than the sum of its proper divisors (23480735).

115409065 is an equidigital number, since it uses as much as digits as its factorization.

115409065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66491.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 115409065 is about 10742.8611179704. The cubic root of 115409065 is about 486.8703279598.

The spelling of 115409065 in words is "one hundred fifteen million, four hundred nine thousand, sixty-five".