273815242 has 12 divisors (see below), whose sum is σ = 414860598. Its totient is φ = 135542000.

The previous prime is 273815221. The next prime is 273815273. The reversal of 273815242 is 242518372.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 218773681 + 55041561 = 14791^2 + 7419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 273815198 and 273815207.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 13692 + ... + 27112.

Almost surely, 2^273815242 is an apocalyptic number.

273815242 is a deficient number, since it is larger than the sum of its proper divisors (141045356).

273815242 is a wasteful number, since it uses less digits than its factorization.

273815242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13625 (or 13524 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 273815242 is about 16547.3635966579. The cubic root of 273815242 is about 649.3605087265.

It can be divided in two parts, 27381 and 5242, that added together give a palindrome (32623).

The spelling of 273815242 in words is "two hundred seventy-three million, eight hundred fifteen thousand, two hundred forty-two".