271289129 has 2 divisors, whose sum is σ = 271289130. Its totient is φ = 271289128.

The previous prime is 271289093. The next prime is 271289147. The reversal of 271289129 is 921982172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194323600 + 76965529 = 13940^2 + 8773^2 .

It is a cyclic number.

It is not a de Polignac number, because 271289129 - 2¹² = 271285033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (271289149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135644564 + 135644565.

It is an arithmetic number, because the mean of its divisors is an integer number (135644565).

Almost surely, 2^271289129 is an apocalyptic number.

It is an amenable number.

271289129 is a deficient number, since it is larger than the sum of its proper divisors (1).

271289129 is an equidigital number, since it uses as much as digits as its factorization.

271289129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 41.

The square root of 271289129 is about 16470.8569600977. The cubic root of 271289129 is about 647.3574202443.

The spelling of 271289129 in words is "two hundred seventy-one million, two hundred eighty-nine thousand, one hundred twenty-nine".