260948221 has 2 divisors, whose sum is σ = 260948222. Its totient is φ = 260948220.

The previous prime is 260948213. The next prime is 260948227. The reversal of 260948221 is 122849062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153016900 + 107931321 = 12370^2 + 10389^2 .

It is a cyclic number.

It is not a de Polignac number, because 260948221 - 2³ = 260948213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260948227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130474110 + 130474111.

It is an arithmetic number, because the mean of its divisors is an integer number (130474111).

Almost surely, 2^260948221 is an apocalyptic number.

It is an amenable number.

260948221 is a deficient number, since it is larger than the sum of its proper divisors (1).

260948221 is an equidigital number, since it uses as much as digits as its factorization.

260948221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 260948221 is about 16153.8918220966. The cubic root of 260948221 is about 639.0253891459.

The spelling of 260948221 in words is "two hundred sixty million, nine hundred forty-eight thousand, two hundred twenty-one".