12530537 has 4 divisors (see below), whose sum is σ = 12600720. Its totient is φ = 12460356.

The previous prime is 12530521. The next prime is 12530569. The reversal of 12530537 is 73503521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12530537 - 2⁴ = 12530521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12530137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34823 + ... + 35180.

It is an arithmetic number, because the mean of its divisors is an integer number (3150180).

Almost surely, 2^12530537 is an apocalyptic number.

It is an amenable number.

12530537 is a deficient number, since it is larger than the sum of its proper divisors (70183).

12530537 is an equidigital number, since it uses as much as digits as its factorization.

12530537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70182.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 12530537 is about 3539.8498555730. The cubic root of 12530537 is about 232.2682749243.

The spelling of 12530537 in words is "twelve million, five hundred thirty thousand, five hundred thirty-seven".