6135681 has 8 divisors (see below), whose sum is σ = 8192704. Its totient is φ = 4084560.

The previous prime is 6135677. The next prime is 6135683. The reversal of 6135681 is 1865316.

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

It is not a de Polignac number, because 6135681 - 2² = 6135677 is a prime.

It is a super-2 number, since 2×6135681² = 75293162667522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6135683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436 + ... + 4266.

It is an arithmetic number, because the mean of its divisors is an integer number (1024088).

Almost surely, 2^6135681 is an apocalyptic number.

It is an amenable number.

6135681 is a deficient number, since it is larger than the sum of its proper divisors (2057023).

6135681 is a wasteful number, since it uses less digits than its factorization.

6135681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951.

The product of its digits is 4320, while the sum is 30.

The square root of 6135681 is about 2477.0306820869. The cubic root of 6135681 is about 183.0715776017.

The spelling of 6135681 in words is "six million, one hundred thirty-five thousand, six hundred eighty-one".