12587001 has 16 divisors (see below), whose sum is σ = 19507200. Its totient is φ = 7069968.

The previous prime is 12586997. The next prime is 12587009. The reversal of 12587001 is 10078521.

12587001 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 12587001 - 2² = 12586997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12587009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841 + ... + 6318.

It is an arithmetic number, because the mean of its divisors is an integer number (1219200).

Almost surely, 2^12587001 is an apocalyptic number.

It is an amenable number.

12587001 is a deficient number, since it is larger than the sum of its proper divisors (6920199).

12587001 is a wasteful number, since it uses less digits than its factorization.

12587001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10228.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 12587001 is about 3547.8163706708. The cubic root of 12587001 is about 232.6166278089.

The spelling of 12587001 in words is "twelve million, five hundred eighty-seven thousand, one".