261059 has 2 divisors, whose sum is σ = 261060. Its totient is φ = 261058.

The previous prime is 261043. The next prime is 261061. The reversal of 261059 is 950162.

261059 is nontrivially palindromic in base 6.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 261059 - 2⁴ = 261043 is a prime.

Together with 261061, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (261089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130529 + 130530.

It is an arithmetic number, because the mean of its divisors is an integer number (130530).

2²⁶¹⁰⁵⁹ is an apocalyptic number.

261059 is a deficient number, since it is larger than the sum of its proper divisors (1).

261059 is an equidigital number, since it uses as much as digits as its factorization.

261059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 261059 is about 510.9393310365. The cubic root of 261059 is about 63.9115803735.

The spelling of 261059 in words is "two hundred sixty-one thousand, fifty-nine".