13161587 has 8 divisors (see below), whose sum is σ = 14094000. Its totient is φ = 12246784.

The previous prime is 13161583. The next prime is 13161593. The reversal of 13161587 is 78516131.

13161587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13161587 - 2² = 13161583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13161583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2837 + ... + 5862.

It is an arithmetic number, because the mean of its divisors is an integer number (1761750).

Almost surely, 2^13161587 is an apocalyptic number.

13161587 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13161587 is a deficient number, since it is larger than the sum of its proper divisors (932413).

13161587 is an equidigital number, since it uses as much as digits as its factorization.

13161587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805.

The product of its digits is 5040, while the sum is 32.

The square root of 13161587 is about 3627.8901582049. The cubic root of 13161587 is about 236.1036782322.

It can be divided in two parts, 131615 and 87, that multiplied together give a triangular number (11450505 = T₄₇₈₅).

The spelling of 13161587 in words is "thirteen million, one hundred sixty-one thousand, five hundred eighty-seven".