6115681 has 8 divisors (see below), whose sum is σ = 7185024. Its totient is φ = 5131920.

The previous prime is 6115679. The next prime is 6115691. The reversal of 6115681 is 1865116.

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 6115681 - 2¹ = 6115679 is a prime.

It is a super-2 number, since 2×6115681² = 74803108187522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6115661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21241 + ... + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (898128).

Almost surely, 2^6115681 is an apocalyptic number.

It is an amenable number.

6115681 is a deficient number, since it is larger than the sum of its proper divisors (1069343).

6115681 is a wasteful number, since it uses less digits than its factorization.

6115681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42791.

The product of its digits is 1440, while the sum is 28.

The square root of 6115681 is about 2472.9902951690. The cubic root of 6115681 is about 182.8724463743.

The spelling of 6115681 in words is "six million, one hundred fifteen thousand, six hundred eighty-one".