273145256 has 16 divisors (see below), whose sum is σ = 542273940. Its totient is φ = 128538880.

The previous prime is 273145253. The next prime is 273145261. The reversal of 273145256 is 652541372.

It can be written as a sum of positive squares in 2 ways, for example, as 216384100 + 56761156 = 14710^2 + 7534^2 .

It is not an unprimeable number, because it can be changed into a prime (273145253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004075 + ... + 1004346.

Almost surely, 2^273145256 is an apocalyptic number.

It is an amenable number.

273145256 is a deficient number, since it is larger than the sum of its proper divisors (269128684).

273145256 is a wasteful number, since it uses less digits than its factorization.

273145256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008444 (or 2008440 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 273145256 is about 16527.1067038366. The cubic root of 273145256 is about 648.8304459798.

The spelling of 273145256 in words is "two hundred seventy-three million, one hundred forty-five thousand, two hundred fifty-six".