12401587 has 16 divisors (see below), whose sum is σ = 14015232. Its totient is φ = 10876320.

The previous prime is 12401579. The next prime is 12401593. The reversal of 12401587 is 78510421.

It is a cyclic number.

It is not a de Polignac number, because 12401587 - 2³ = 12401579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12401507) 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, 74178 + ... + 74344.

It is an arithmetic number, because the mean of its divisors is an integer number (875952).

Almost surely, 2^12401587 is an apocalyptic number.

12401587 is a deficient number, since it is larger than the sum of its proper divisors (1613645).

12401587 is a wasteful number, since it uses less digits than its factorization.

12401587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 12401587 is about 3521.5887039801. The cubic root of 12401587 is about 231.4687793669.

The spelling of 12401587 in words is "twelve million, four hundred one thousand, five hundred eighty-seven".