12913528 has 8 divisors (see below), whose sum is σ = 24212880. Its totient is φ = 6456760.

The previous prime is 12913501. The next prime is 12913529. The reversal of 12913528 is 82531921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12913528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12913529) 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 as a sum of consecutive naturals, namely, 807088 + ... + 807103.

It is an arithmetic number, because the mean of its divisors is an integer number (3026610).

Almost surely, 2^12913528 is an apocalyptic number.

It is an amenable number.

12913528 is a deficient number, since it is larger than the sum of its proper divisors (11299352).

12913528 is a wasteful number, since it uses less digits than its factorization.

12913528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614197 (or 1614193 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 12913528 is about 3593.5397590677. The cubic root of 12913528 is about 234.6109633770.

The spelling of 12913528 in words is "twelve million, nine hundred thirteen thousand, five hundred twenty-eight".