12079521 has 12 divisors (see below), whose sum is σ = 17527380. Its totient is φ = 8016480.

The previous prime is 12079513. The next prime is 12079523. The reversal of 12079521 is 12597021.

It can be written as a sum of positive squares in 2 ways, for example, as 8785296 + 3294225 = 2964^2 + 1815^2 .

It is not a de Polignac number, because 12079521 - 2³ = 12079513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12079523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 870 + ... + 4991.

It is an arithmetic number, because the mean of its divisors is an integer number (1460615).

Almost surely, 2^12079521 is an apocalyptic number.

It is an amenable number.

12079521 is a deficient number, since it is larger than the sum of its proper divisors (5447859).

12079521 is a wasteful number, since it uses less digits than its factorization.

12079521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6096 (or 6093 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12079521 is about 3475.5605303318. The cubic root of 12079521 is about 229.4474511952.

The spelling of 12079521 in words is "twelve million, seventy-nine thousand, five hundred twenty-one".