12331587 has 8 divisors (see below), whose sum is σ = 16465680. Its totient is φ = 8209280.

The previous prime is 12331541. The next prime is 12331591. The reversal of 12331587 is 78513321.

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 12331587 - 2¹⁸ = 12069443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12331537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114 + ... + 4967.

It is an arithmetic number, because the mean of its divisors is an integer number (2058210).

Almost surely, 2^12331587 is an apocalyptic number.

12331587 is a deficient number, since it is larger than the sum of its proper divisors (4134093).

12331587 is an equidigital number, since it uses as much as digits as its factorization.

12331587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893.

The product of its digits is 5040, while the sum is 30.

The square root of 12331587 is about 3511.6359435454. The cubic root of 12331587 is about 231.0324536027.

The spelling of 12331587 in words is "twelve million, three hundred thirty-one thousand, five hundred eighty-seven".