27134321 has 2 divisors, whose sum is σ = 27134322. Its totient is φ = 27134320.

The previous prime is 27134311. The next prime is 27134339. The reversal of 27134321 is 12343172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26061025 + 1073296 = 5105^2 + 1036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27134321 is a prime.

It is a super-2 number, since 2×27134321² = 1472542752262082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27134311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13567160 + 13567161.

It is an arithmetic number, because the mean of its divisors is an integer number (13567161).

Almost surely, 2^27134321 is an apocalyptic number.

It is an amenable number.

27134321 is a deficient number, since it is larger than the sum of its proper divisors (1).

27134321 is an equidigital number, since it uses as much as digits as its factorization.

27134321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 27134321 is about 5209.0614317744. The cubic root of 27134321 is about 300.4966624860.

Adding to 27134321 its reverse (12343172), we get a palindrome (39477493).

The spelling of 27134321 in words is "twenty-seven million, one hundred thirty-four thousand, three hundred twenty-one".