260589881 has 2 divisors, whose sum is σ = 260589882. Its totient is φ = 260589880.

The previous prime is 260589841. The next prime is 260589887. The reversal of 260589881 is 188985062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150675625 + 109914256 = 12275^2 + 10484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260589881 is a prime.

It is a super-2 number, since 2×260589881² = 135814172159188322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260589887) 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, 130294940 + 130294941.

It is an arithmetic number, because the mean of its divisors is an integer number (130294941).

Almost surely, 2^260589881 is an apocalyptic number.

It is an amenable number.

260589881 is a deficient number, since it is larger than the sum of its proper divisors (1).

260589881 is an equidigital number, since it uses as much as digits as its factorization.

260589881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 260589881 is about 16142.7965668901. The cubic root of 260589881 is about 638.7327471108.

The spelling of 260589881 in words is "two hundred sixty million, five hundred eighty-nine thousand, eight hundred eighty-one".