27138071 has 2 divisors, whose sum is σ = 27138072. Its totient is φ = 27138070.

The previous prime is 27138049. The next prime is 27138079. The reversal of 27138071 is 17083172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27138071 - 2¹⁴ = 27121687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27138079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13569035 + 13569036.

It is an arithmetic number, because the mean of its divisors is an integer number (13569036).

Almost surely, 2^27138071 is an apocalyptic number.

27138071 is a deficient number, since it is larger than the sum of its proper divisors (1).

27138071 is an equidigital number, since it uses as much as digits as its factorization.

27138071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 27138071 is about 5209.4213690198. The cubic root of 27138071 is about 300.5105048639.

The spelling of 27138071 in words is "twenty-seven million, one hundred thirty-eight thousand, seventy-one".