275070221 has 2 divisors, whose sum is σ = 275070222. Its totient is φ = 275070220.

The previous prime is 275070203. The next prime is 275070227. The reversal of 275070221 is 122070572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252364996 + 22705225 = 15886^2 + 4765^2 .

It is a cyclic number.

It is not a de Polignac number, because 275070221 - 2⁶ = 275070157 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 (275070227) 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, 137535110 + 137535111.

It is an arithmetic number, because the mean of its divisors is an integer number (137535111).

Almost surely, 2^275070221 is an apocalyptic number.

It is an amenable number.

275070221 is a deficient number, since it is larger than the sum of its proper divisors (1).

275070221 is an equidigital number, since it uses as much as digits as its factorization.

275070221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 275070221 is about 16585.2410594480. The cubic root of 275070221 is about 650.3510695224.

The spelling of 275070221 in words is "two hundred seventy-five million, seventy thousand, two hundred twenty-one".