12530691 has 12 divisors (see below), whose sum is σ = 18139368. Its totient is φ = 8335584.

The previous prime is 12530677. The next prime is 12530701. The reversal of 12530691 is 19603521.

12530691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12530691 - 2⁵ = 12530659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12530191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3831 + ... + 6303.

It is an arithmetic number, because the mean of its divisors is an integer number (1511614).

Almost surely, 2^12530691 is an apocalyptic number.

12530691 is a deficient number, since it is larger than the sum of its proper divisors (5608677).

12530691 is a wasteful number, since it uses less digits than its factorization.

12530691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042 (or 3039 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 12530691 is about 3539.8716078412. The cubic root of 12530691 is about 232.2692264442.

The spelling of 12530691 in words is "twelve million, five hundred thirty thousand, six hundred ninety-one".