12587155 has 8 divisors (see below), whose sum is σ = 17262432. Its totient is φ = 8631168.

The previous prime is 12587153. The next prime is 12587203. The reversal of 12587155 is 55178521.

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

It is not a de Polignac number, because 12587155 - 2¹ = 12587153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12587155.

It is not an unprimeable number, because it can be changed into a prime (12587153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179782 + ... + 179851.

It is an arithmetic number, because the mean of its divisors is an integer number (2157804).

Almost surely, 2^12587155 is an apocalyptic number.

12587155 is a deficient number, since it is larger than the sum of its proper divisors (4675277).

12587155 is an equidigital number, since it uses as much as digits as its factorization.

12587155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359645.

The product of its digits is 14000, while the sum is 34.

The square root of 12587155 is about 3547.8380740953. The cubic root of 12587155 is about 232.6175764811.

The spelling of 12587155 in words is "twelve million, five hundred eighty-seven thousand, one hundred fifty-five".