271408861 has 2 divisors, whose sum is σ = 271408862. Its totient is φ = 271408860.

The previous prime is 271408843. The next prime is 271408867. The reversal of 271408861 is 168804172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258405625 + 13003236 = 16075^2 + 3606^2 .

It is a cyclic number.

It is not a de Polignac number, because 271408861 - 2²⁷ = 137191133 is a prime.

It is equal to p_14783761 and since 271408861 and 14783761 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 271408861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271408867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135704430 + 135704431.

It is an arithmetic number, because the mean of its divisors is an integer number (135704431).

Almost surely, 2^271408861 is an apocalyptic number.

It is an amenable number.

271408861 is a deficient number, since it is larger than the sum of its proper divisors (1).

271408861 is an equidigital number, since it uses as much as digits as its factorization.

271408861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 271408861 is about 16474.4912212790. The cubic root of 271408861 is about 647.4526421439.

The spelling of 271408861 in words is "two hundred seventy-one million, four hundred eight thousand, eight hundred sixty-one".