12530289 has 8 divisors (see below), whose sum is σ = 16770240. Its totient is φ = 8321936.

The previous prime is 12530279. The next prime is 12530303. The reversal of 12530289 is 98203521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12530289 - 2⁵ = 12530257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12530279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6957 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (2096280).

Almost surely, 2^12530289 is an apocalyptic number.

It is an amenable number.

12530289 is a deficient number, since it is larger than the sum of its proper divisors (4239951).

12530289 is a wasteful number, since it uses less digits than its factorization.

12530289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15799.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12530289 is about 3539.8148256653. The cubic root of 12530289 is about 232.2667425901.

The spelling of 12530289 in words is "twelve million, five hundred thirty thousand, two hundred eighty-nine".