273499481 has 2 divisors, whose sum is σ = 273499482. Its totient is φ = 273499480.

The previous prime is 273499477. The next prime is 273499487. The reversal of 273499481 is 184994372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255360400 + 18139081 = 15980^2 + 4259^2 .

It is a cyclic number.

It is not a de Polignac number, because 273499481 - 2² = 273499477 is a prime.

It is a super-2 number, since 2×273499481² = 149603932214538722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (273499487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136749740 + 136749741.

It is an arithmetic number, because the mean of its divisors is an integer number (136749741).

Almost surely, 2^273499481 is an apocalyptic number.

It is an amenable number.

273499481 is a deficient number, since it is larger than the sum of its proper divisors (1).

273499481 is an equidigital number, since it uses as much as digits as its factorization.

273499481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 273499481 is about 16537.8197172421. The cubic root of 273499481 is about 649.1108006990.

The spelling of 273499481 in words is "two hundred seventy-three million, four hundred ninety-nine thousand, four hundred eighty-one".