12036521 has 8 divisors (see below), whose sum is σ = 14354304. Its totient is φ = 9868320.

The previous prime is 12036511. The next prime is 12036523. The reversal of 12036521 is 12563021.

12036521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12036521 - 2⁶ = 12036457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12036493 and 12036502.

It is not an unprimeable number, because it can be changed into a prime (12036523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37220 + ... + 37541.

It is an arithmetic number, because the mean of its divisors is an integer number (1794288).

Almost surely, 2^12036521 is an apocalyptic number.

It is an amenable number.

12036521 is a deficient number, since it is larger than the sum of its proper divisors (2317783).

12036521 is an equidigital number, since it uses as much as digits as its factorization.

12036521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74791.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12036521 is about 3469.3689627942. The cubic root of 12036521 is about 229.1748694511.

Adding to 12036521 its reverse (12563021), we get a palindrome (24599542).

The spelling of 12036521 in words is "twelve million, thirty-six thousand, five hundred twenty-one".