271640027 has 2 divisors, whose sum is σ = 271640028. Its totient is φ = 271640026.

The previous prime is 271640023. The next prime is 271640053. The reversal of 271640027 is 720046172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 271640027 - 2² = 271640023 is a prime.

It is not a weakly prime, because it can be changed into another prime (271640023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135820013 + 135820014.

It is an arithmetic number, because the mean of its divisors is an integer number (135820014).

Almost surely, 2^271640027 is an apocalyptic number.

271640027 is a deficient number, since it is larger than the sum of its proper divisors (1).

271640027 is an equidigital number, since it uses as much as digits as its factorization.

271640027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 271640027 is about 16481.5056047680. The cubic root of 271640027 is about 647.6364074107.

Adding to 271640027 its reverse (720046172), we get a palindrome (991686199).

The spelling of 271640027 in words is "two hundred seventy-one million, six hundred forty thousand, twenty-seven".