12733538 has 8 divisors (see below), whose sum is σ = 19120860. Its totient is φ = 6359920.

The previous prime is 12733537. The next prime is 12733541. The reversal of 12733538 is 83533721.

It can be written as a sum of positive squares in 2 ways, for example, as 11404129 + 1329409 = 3377^2 + 1153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12733537) 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, 653 + ... + 5088.

Almost surely, 2^12733538 is an apocalyptic number.

12733538 is a deficient number, since it is larger than the sum of its proper divisors (6387322).

12733538 is a wasteful number, since it uses less digits than its factorization.

12733538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852.

The product of its digits is 15120, while the sum is 32.

The square root of 12733538 is about 3568.4083286530. The cubic root of 12733538 is about 233.5158494867.

The spelling of 12733538 in words is "twelve million, seven hundred thirty-three thousand, five hundred thirty-eight".