273213349 has 2 divisors, whose sum is σ = 273213350. Its totient is φ = 273213348.

The previous prime is 273213329. The next prime is 273213373. The reversal of 273213349 is 943312372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202350625 + 70862724 = 14225^2 + 8418^2 .

It is a cyclic number.

It is not a de Polignac number, because 273213349 - 2⁷ = 273213221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273213319) 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, 136606674 + 136606675.

It is an arithmetic number, because the mean of its divisors is an integer number (136606675).

Almost surely, 2^273213349 is an apocalyptic number.

It is an amenable number.

273213349 is a deficient number, since it is larger than the sum of its proper divisors (1).

273213349 is an equidigital number, since it uses as much as digits as its factorization.

273213349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 273213349 is about 16529.1666154105. The cubic root of 273213349 is about 648.8843576377.

The spelling of 273213349 in words is "two hundred seventy-three million, two hundred thirteen thousand, three hundred forty-nine".