273748457 has 2 divisors, whose sum is σ = 273748458. Its totient is φ = 273748456.

The previous prime is 273748441. The next prime is 273748463. The reversal of 273748457 is 754847372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273703936 + 44521 = 16544^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 273748457 - 2⁴ = 273748441 is a prime.

It is not a weakly prime, because it can be changed into another prime (273748757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136874228 + 136874229.

It is an arithmetic number, because the mean of its divisors is an integer number (136874229).

Almost surely, 2^273748457 is an apocalyptic number.

It is an amenable number.

273748457 is a deficient number, since it is larger than the sum of its proper divisors (1).

273748457 is an equidigital number, since it uses as much as digits as its factorization.

273748457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1317120, while the sum is 47.

The square root of 273748457 is about 16545.3454784117. The cubic root of 273748457 is about 649.3077102682.

The spelling of 273748457 in words is "two hundred seventy-three million, seven hundred forty-eight thousand, four hundred fifty-seven".