27134981 has 4 divisors (see below), whose sum is σ = 28070700. Its totient is φ = 26199264.

The previous prime is 27134969. The next prime is 27135001. The reversal of 27134981 is 18943172.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6974881 + 20160100 = 2641^2 + 4490^2 .

It is a cyclic number.

It is not a de Polignac number, because 27134981 - 2¹⁸ = 26872837 is a prime.

It is a super-2 number, since 2×27134981² = 1472614387740722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27134581) 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, 467816 + ... + 467873.

It is an arithmetic number, because the mean of its divisors is an integer number (7017675).

Almost surely, 2^27134981 is an apocalyptic number.

It is an amenable number.

27134981 is a deficient number, since it is larger than the sum of its proper divisors (935719).

27134981 is an equidigital number, since it uses as much as digits as its factorization.

27134981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935718.

The product of its digits is 12096, while the sum is 35.

The square root of 27134981 is about 5209.1247825331. The cubic root of 27134981 is about 300.4990988370.

The spelling of 27134981 in words is "twenty-seven million, one hundred thirty-four thousand, nine hundred eighty-one".