12520587 has 8 divisors (see below), whose sum is σ = 16822080. Its totient is φ = 8283080.

The previous prime is 12520553. The next prime is 12520597. The reversal of 12520587 is 78502521.

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 12520587 - 2¹⁵ = 12487819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12520507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15537 + ... + 16322.

It is an arithmetic number, because the mean of its divisors is an integer number (2102760).

Almost surely, 2^12520587 is an apocalyptic number.

12520587 is a deficient number, since it is larger than the sum of its proper divisors (4301493).

12520587 is a wasteful number, since it uses less digits than its factorization.

12520587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31993.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 12520587 is about 3538.4441496228. Note that the first 3 decimals coincide. The cubic root of 12520587 is about 232.2067803181.

The spelling of 12520587 in words is "twelve million, five hundred twenty thousand, five hundred eighty-seven".