13170587 has 4 divisors (see below), whose sum is σ = 13351080. Its totient is φ = 12990096.

The previous prime is 13170583. The next prime is 13170589. The reversal of 13170587 is 78507131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78507131 = 443 ⋅177217.

It is a cyclic number.

It is not a de Polignac number, because 13170587 - 2² = 13170583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13170581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90137 + ... + 90282.

It is an arithmetic number, because the mean of its divisors is an integer number (3337770).

Almost surely, 2^13170587 is an apocalyptic number.

13170587 is a deficient number, since it is larger than the sum of its proper divisors (180493).

13170587 is an equidigital number, since it uses as much as digits as its factorization.

13170587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180492.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 13170587 is about 3629.1303365958. The cubic root of 13170587 is about 236.1574825072.

The spelling of 13170587 in words is "thirteen million, one hundred seventy thousand, five hundred eighty-seven".