273221057 has 2 divisors, whose sum is σ = 273221058. Its totient is φ = 273221056.

The previous prime is 273221023. The next prime is 273221063. The reversal of 273221057 is 750122372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271623361 + 1597696 = 16481^2 + 1264^2 .

It is a cyclic number.

It is not a de Polignac number, because 273221057 - 2²⁸ = 4785601 is a prime.

It is not a weakly prime, because it can be changed into another prime (273221087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136610528 + 136610529.

It is an arithmetic number, because the mean of its divisors is an integer number (136610529).

Almost surely, 2^273221057 is an apocalyptic number.

It is an amenable number.

273221057 is a deficient number, since it is larger than the sum of its proper divisors (1).

273221057 is an equidigital number, since it uses as much as digits as its factorization.

273221057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 273221057 is about 16529.3997773664. The cubic root of 273221057 is about 648.8904597719.

The spelling of 273221057 in words is "two hundred seventy-three million, two hundred twenty-one thousand, fifty-seven".