27141681 has 16 divisors (see below), whose sum is σ = 41513984. Its totient is φ = 15451344.

The previous prime is 27141677. The next prime is 27141721. The reversal of 27141681 is 18614172.

It is not a de Polignac number, because 27141681 - 2² = 27141677 is a prime.

It is a super-2 number, since 2×27141681² = 1473341695011522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27141641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3660 + ... + 8226.

It is an arithmetic number, because the mean of its divisors is an integer number (2594624).

Almost surely, 2^27141681 is an apocalyptic number.

27141681 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27141681 is a deficient number, since it is larger than the sum of its proper divisors (14372303).

27141681 is a wasteful number, since it uses less digits than its factorization.

27141681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860.

The product of its digits is 2688, while the sum is 30.

The square root of 27141681 is about 5209.7678451156. The cubic root of 27141681 is about 300.5238292551.

The spelling of 27141681 in words is "twenty-seven million, one hundred forty-one thousand, six hundred eighty-one".