275881 has 2 divisors, whose sum is σ = 275882. Its totient is φ = 275880.

The previous prime is 275837. The next prime is 275897. The reversal of 275881 is 188572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275625 + 256 = 525^2 + 16^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275881 is a prime.

It is a super-2 number, since 2×275881² = 152220652322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275581) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137940 + 137941.

It is an arithmetic number, because the mean of its divisors is an integer number (137941).

2²⁷⁵⁸⁸¹ is an apocalyptic number.

It is an amenable number.

275881 is a deficient number, since it is larger than the sum of its proper divisors (1).

275881 is an equidigital number, since it uses as much as digits as its factorization.

275881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 31.

The square root of 275881 is about 525.2437529376. The cubic root of 275881 is about 65.0989420177.

It can be divided in two parts, 275 and 881, that added together give a square (1156 = 34²).

The spelling of 275881 in words is "two hundred seventy-five thousand, eight hundred eighty-one".