273249497 has 2 divisors, whose sum is σ = 273249498. Its totient is φ = 273249496.

The previous prime is 273249443. The next prime is 273249511. The reversal of 273249497 is 794942372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228947161 + 44302336 = 15131^2 + 6656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273249497 is a prime.

It is a super-2 number, since 2×273249497² = 149330575221506018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (273240497) 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, 136624748 + 136624749.

It is an arithmetic number, because the mean of its divisors is an integer number (136624749).

Almost surely, 2^273249497 is an apocalyptic number.

It is an amenable number.

273249497 is a deficient number, since it is larger than the sum of its proper divisors (1).

273249497 is an equidigital number, since it uses as much as digits as its factorization.

273249497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 47.

The square root of 273249497 is about 16530.2600403018. The cubic root of 273249497 is about 648.9129736594.

The spelling of 273249497 in words is "two hundred seventy-three million, two hundred forty-nine thousand, four hundred ninety-seven".