12529530 has 48 divisors (see below), whose sum is σ = 35085960. Its totient is φ = 3083904.

The previous prime is 12529523. The next prime is 12529547. The reversal of 12529530 is 3592521.

12529530 is a `hidden beast` number, since 125 + 2 + 9 + 530 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10949481 + 1580049 = 3309^2 + 1257^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12529494 and 12529503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4185 + ... + 6524.

Almost surely, 2^12529530 is an apocalyptic number.

12529530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12529530 is an abundant number, since it is smaller than the sum of its proper divisors (22556430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12529530 is a wasteful number, since it uses less digits than its factorization.

12529530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735 (or 10732 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 12529530 is about 3539.7076150439. The cubic root of 12529530 is about 232.2620527802.

The spelling of 12529530 in words is "twelve million, five hundred twenty-nine thousand, five hundred thirty".