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6115 = 51223

6115 has 4 divisors (see below), whose sum is σ = 7344. Its totient is φ = 4888.

The previous prime is 6113. The next prime is 6121. The reversal of 6115 is 5116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6115 - 21 = 6113 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

6115 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6095 and 6104.

It is not an unprimeable number, because it can be changed into a prime (6113) 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, 607 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (1836).

26115 is an apocalyptic number.

6115 is a deficient number, since it is larger than the sum of its proper divisors (1229).

6115 is a wasteful number, since it uses less digits than its factorization.

6115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228.

The product of its digits is 30, while the sum is 13.

The square root of 6115 is about 78.1984654581. The cubic root of 6115 is about 18.2865658318.

Subtracting from 6115 its reverse (5116), we obtain a palindrome (999).

It can be divided in two parts, 611 and 5, that added together give a palindrome (616).

The spelling of 6115 in words is "six thousand, one hundred fifteen".

Divisors: 1 5 1223 6115