12730544 has 10 divisors (see below), whose sum is σ = 24665460. Its totient is φ = 6365264.

The previous prime is 12730519. The next prime is 12730567. The reversal of 12730544 is 44503721.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 397814 + ... + 397845.

It is an arithmetic number, because the mean of its divisors is an integer number (2466546).

Almost surely, 2^12730544 is an apocalyptic number.

It is an amenable number.

12730544 is a deficient number, since it is larger than the sum of its proper divisors (11934916).

12730544 is an equidigital number, since it uses as much as digits as its factorization.

12730544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795667 (or 795661 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 12730544 is about 3567.9887892201. The cubic root of 12730544 is about 233.4975460831.

The spelling of 12730544 in words is "twelve million, seven hundred thirty thousand, five hundred forty-four".