275080321 has 2 divisors, whose sum is σ = 275080322. Its totient is φ = 275080320.

The previous prime is 275080313. The next prime is 275080339. The reversal of 275080321 is 123080572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250873921 + 24206400 = 15839^2 + 4920^2 .

It is a cyclic number.

It is not a de Polignac number, because 275080321 - 2³ = 275080313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275080321.

It is not a weakly prime, because it can be changed into another prime (275080381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137540160 + 137540161.

It is an arithmetic number, because the mean of its divisors is an integer number (137540161).

Almost surely, 2^275080321 is an apocalyptic number.

It is an amenable number.

275080321 is a deficient number, since it is larger than the sum of its proper divisors (1).

275080321 is an equidigital number, since it uses as much as digits as its factorization.

275080321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 275080321 is about 16585.5455442382. The cubic root of 275080321 is about 650.3590292661.

The spelling of 275080321 in words is "two hundred seventy-five million, eighty thousand, three hundred twenty-one".