260760221 has 2 divisors, whose sum is σ = 260760222. Its totient is φ = 260760220.

The previous prime is 260760193. The next prime is 260760317. The reversal of 260760221 is 122067062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243703321 + 17056900 = 15611^2 + 4130^2 .

It is a cyclic number.

It is not a de Polignac number, because 260760221 - 2²² = 256565917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260766221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130380110 + 130380111.

It is an arithmetic number, because the mean of its divisors is an integer number (130380111).

Almost surely, 2^260760221 is an apocalyptic number.

It is an amenable number.

260760221 is a deficient number, since it is larger than the sum of its proper divisors (1).

260760221 is an equidigital number, since it uses as much as digits as its factorization.

260760221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 260760221 is about 16148.0717424713. The cubic root of 260760221 is about 638.8718904491.

The spelling of 260760221 in words is "two hundred sixty million, seven hundred sixty thousand, two hundred twenty-one".