273945601 has 4 divisors (see below), whose sum is σ = 275142100. Its totient is φ = 272749104.

The previous prime is 273945587. The next prime is 273945613. The reversal of 273945601 is 106549372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 255968001 + 17977600 = 15999^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 273945601 - 2⁵ = 273945569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273945691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597906 + ... + 598363.

It is an arithmetic number, because the mean of its divisors is an integer number (68785525).

Almost surely, 2^273945601 is an apocalyptic number.

It is an amenable number.

273945601 is a deficient number, since it is larger than the sum of its proper divisors (1196499).

273945601 is a wasteful number, since it uses less digits than its factorization.

273945601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196498.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 273945601 is about 16551.3020937931. The cubic root of 273945601 is about 649.4635423828.

The spelling of 273945601 in words is "two hundred seventy-three million, nine hundred forty-five thousand, six hundred one".