260696221 has 2 divisors, whose sum is σ = 260696222. Its totient is φ = 260696220.

The previous prime is 260696209. The next prime is 260696231. The reversal of 260696221 is 122696062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226051225 + 34644996 = 15035^2 + 5886^2 .

It is a cyclic number.

It is not a de Polignac number, because 260696221 - 2¹¹ = 260694173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260696201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130348110 + 130348111.

It is an arithmetic number, because the mean of its divisors is an integer number (130348111).

Almost surely, 2^260696221 is an apocalyptic number.

It is an amenable number.

260696221 is a deficient number, since it is larger than the sum of its proper divisors (1).

260696221 is an equidigital number, since it uses as much as digits as its factorization.

260696221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 260696221 is about 16146.0899601111. The cubic root of 260696221 is about 638.8196187409.

The spelling of 260696221 in words is "two hundred sixty million, six hundred ninety-six thousand, two hundred twenty-one".