273089221 has 2 divisors, whose sum is σ = 273089222. Its totient is φ = 273089220.

The previous prime is 273089209. The next prime is 273089237. The reversal of 273089221 is 122980372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272613121 + 476100 = 16511^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 273089221 - 2¹¹ = 273087173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273089821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136544610 + 136544611.

It is an arithmetic number, because the mean of its divisors is an integer number (136544611).

Almost surely, 2^273089221 is an apocalyptic number.

It is an amenable number.

273089221 is a deficient number, since it is larger than the sum of its proper divisors (1).

273089221 is an equidigital number, since it uses as much as digits as its factorization.

273089221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 273089221 is about 16525.4113715816. The cubic root of 273089221 is about 648.7860743500.

The spelling of 273089221 in words is "two hundred seventy-three million, eighty-nine thousand, two hundred twenty-one".