12792521 has 8 divisors (see below), whose sum is σ = 14682624. Its totient is φ = 10918080.

The previous prime is 12792499. The next prime is 12792523. The reversal of 12792521 is 12529721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12792521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12792523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2105 + ... + 5478.

It is an arithmetic number, because the mean of its divisors is an integer number (1835328).

Almost surely, 2^12792521 is an apocalyptic number.

It is an amenable number.

12792521 is a deficient number, since it is larger than the sum of its proper divisors (1890103).

12792521 is an equidigital number, since it uses as much as digits as its factorization.

12792521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831.

The product of its digits is 2520, while the sum is 29.

The square root of 12792521 is about 3576.6633892498. The cubic root of 12792521 is about 233.8758503293.

The spelling of 12792521 in words is "twelve million, seven hundred ninety-two thousand, five hundred twenty-one".