13011587 has 2 divisors, whose sum is σ = 13011588. Its totient is φ = 13011586.

The previous prime is 13011577. The next prime is 13011617. The reversal of 13011587 is 78511031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13011587 - 2¹⁰ = 13010563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13011577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6505793 + 6505794.

It is an arithmetic number, because the mean of its divisors is an integer number (6505794).

Almost surely, 2^13011587 is an apocalyptic number.

13011587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13011587 is an equidigital number, since it uses as much as digits as its factorization.

13011587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 13011587 is about 3607.1577453724. The cubic root of 13011587 is about 235.2033067836.

The spelling of 13011587 in words is "thirteen million, eleven thousand, five hundred eighty-seven".