12520996 has 6 divisors (see below), whose sum is σ = 21911750. Its totient is φ = 6260496.

The previous prime is 12520987. The next prime is 12520997. The reversal of 12520996 is 69902521.

12520996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9388096 + 3132900 = 3064^2 + 1770^2 .

It is not an unprimeable number, because it can be changed into a prime (12520997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565121 + ... + 1565128.

Almost surely, 2^12520996 is an apocalyptic number.

It is an amenable number.

12520996 is a deficient number, since it is larger than the sum of its proper divisors (9390754).

12520996 is a wasteful number, since it uses less digits than its factorization.

12520996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130253 (or 3130251 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 12520996 is about 3538.5019429131. The cubic root of 12520996 is about 232.2093087283.

The spelling of 12520996 in words is "twelve million, five hundred twenty thousand, nine hundred ninety-six".