9115915 has 8 divisors (see below), whose sum is σ = 11514960. Its totient is φ = 6908832.

The previous prime is 9115907. The next prime is 9115919. The reversal of 9115915 is 5195119.

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 9115915 - 2³ = 9115907 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9115919) 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, 47884 + ... + 48073.

It is an arithmetic number, because the mean of its divisors is an integer number (1439370).

Almost surely, 2^9115915 is an apocalyptic number.

9115915 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9115915 is a deficient number, since it is larger than the sum of its proper divisors (2399045).

9115915 is a wasteful number, since it uses less digits than its factorization.

9115915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95981.

The product of its digits is 2025, while the sum is 31.

The square root of 9115915 is about 3019.2573590206. The cubic root of 9115915 is about 208.8975864775.

The spelling of 9115915 in words is "nine million, one hundred fifteen thousand, nine hundred fifteen".