13601587 has 4 divisors (see below), whose sum is σ = 14317480. Its totient is φ = 12885696.

The previous prime is 13601563. The next prime is 13601593. The reversal of 13601587 is 78510631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78510631 = 31 ⋅2532601.

It is a cyclic number.

It is not a de Polignac number, because 13601587 - 2¹¹ = 13599539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13602587) 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, 357918 + ... + 357955.

It is an arithmetic number, because the mean of its divisors is an integer number (3579370).

Almost surely, 2^13601587 is an apocalyptic number.

13601587 is a deficient number, since it is larger than the sum of its proper divisors (715893).

13601587 is an equidigital number, since it uses as much as digits as its factorization.

13601587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715892.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 13601587 is about 3688.0329445383. The cubic root of 13601587 is about 238.7059226215.

The spelling of 13601587 in words is "thirteen million, six hundred one thousand, five hundred eighty-seven".