12990524 has 6 divisors (see below), whose sum is σ = 22733424. Its totient is φ = 6495260.

The previous prime is 12990503. The next prime is 12990541. The reversal of 12990524 is 42509921.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1623812 + ... + 1623819.

It is an arithmetic number, because the mean of its divisors is an integer number (3788904).

Almost surely, 2^12990524 is an apocalyptic number.

It is an amenable number.

12990524 is a deficient number, since it is larger than the sum of its proper divisors (9742900).

12990524 is a wasteful number, since it uses less digits than its factorization.

12990524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247635 (or 3247633 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 12990524 is about 3604.2369511451. The cubic root of 12990524 is about 235.0763234811.

The spelling of 12990524 in words is "twelve million, nine hundred ninety thousand, five hundred twenty-four".