271538213 has 2 divisors, whose sum is σ = 271538214. Its totient is φ = 271538212.

The previous prime is 271538147. The next prime is 271538219. The reversal of 271538213 is 312835172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265787809 + 5750404 = 16303^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 271538213 - 2¹² = 271534117 is a prime.

It is a super-2 number, since 2×271538213² = 147466002238466738, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_14790335 and since 271538213 and 14790335 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 271538213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271538219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135769106 + 135769107.

It is an arithmetic number, because the mean of its divisors is an integer number (135769107).

Almost surely, 2^271538213 is an apocalyptic number.

It is an amenable number.

271538213 is a deficient number, since it is larger than the sum of its proper divisors (1).

271538213 is an equidigital number, since it uses as much as digits as its factorization.

271538213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 271538213 is about 16478.4165804849. The cubic root of 271538213 is about 647.5554832874. Note that the first 3 decimals are identical.

The spelling of 271538213 in words is "two hundred seventy-one million, five hundred thirty-eight thousand, two hundred thirteen".