273740505 has 16 divisors (see below), whose sum is σ = 461037120. Its totient is φ = 138310848.

The previous prime is 273740497. The next prime is 273740513. The reversal of 273740505 is 505047372.

It is an interprime number because it is at equal distance from previous prime (273740497) and next prime (273740513).

It is not a de Polignac number, because 273740505 - 2³ = 273740497 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 479962 + ... + 480531.

It is an arithmetic number, because the mean of its divisors is an integer number (28814820).

Almost surely, 2^273740505 is an apocalyptic number.

It is an amenable number.

273740505 is a deficient number, since it is larger than the sum of its proper divisors (187296615).

273740505 is a wasteful number, since it uses less digits than its factorization.

273740505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960520.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 273740505 is about 16545.1051673901. The cubic root of 273740505 is about 649.3014230548.

Adding to 273740505 its reverse (505047372), we get a palindrome (778787877).

The spelling of 273740505 in words is "two hundred seventy-three million, seven hundred forty thousand, five hundred five".