509115 has 8 divisors (see below), whose sum is σ = 814608. Its totient is φ = 271520.

The previous prime is 509101. The next prime is 509123. The reversal of 509115 is 511905.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 509115 - 2⁷ = 508987 is a prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 509091 and 509100.

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, 16956 + ... + 16985.

It is an arithmetic number, because the mean of its divisors is an integer number (101826).

2⁵⁰⁹¹¹⁵ is an apocalyptic number.

509115 is a deficient number, since it is larger than the sum of its proper divisors (305493).

509115 is a wasteful number, since it uses less digits than its factorization.

509115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33949.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 509115 is about 713.5229498762. The cubic root of 509115 is about 79.8494564691.

The spelling of 509115 in words is "five hundred nine thousand, one hundred fifteen".