275641 has 2 divisors, whose sum is σ = 275642. Its totient is φ = 275640.

The previous prime is 275623. The next prime is 275651. The reversal of 275641 is 146572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275625 + 16 = 525^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 275641 - 2⁹ = 275129 is a prime.

It is an Ulam number.

275641 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (275651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137820 + 137821.

It is an arithmetic number, because the mean of its divisors is an integer number (137821).

2²⁷⁵⁶⁴¹ is an apocalyptic number.

It is an amenable number.

275641 is a deficient number, since it is larger than the sum of its proper divisors (1).

275641 is an equidigital number, since it uses as much as digits as its factorization.

275641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 275641 is about 525.0152378741. The cubic root of 275641 is about 65.0800591433.

The spelling of 275641 in words is "two hundred seventy-five thousand, six hundred forty-one".