115395009 has 4 divisors (see below), whose sum is σ = 153860016. Its totient is φ = 76930004.

The previous prime is 115395001. The next prime is 115395017. The reversal of 115395009 is 900593511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 900593511 = 3 ⋅300197837.

It is an interprime number because it is at equal distance from previous prime (115395001) and next prime (115395017).

It is a cyclic number.

It is not a de Polignac number, because 115395009 - 2³ = 115395001 is a prime.

It is a super-2 number, since 2×115395009² = 26632016204220162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115395001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19232499 + ... + 19232504.

It is an arithmetic number, because the mean of its divisors is an integer number (38465004).

Almost surely, 2^115395009 is an apocalyptic number.

It is an amenable number.

115395009 is a deficient number, since it is larger than the sum of its proper divisors (38465007).

115395009 is an equidigital number, since it uses as much as digits as its factorization.

115395009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38465006.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 115395009 is about 10742.2068961643. The cubic root of 115395009 is about 486.8505613809.

The spelling of 115395009 in words is "one hundred fifteen million, three hundred ninety-five thousand, nine".