13143587 has 2 divisors, whose sum is σ = 13143588. Its totient is φ = 13143586.

The previous prime is 13143553. The next prime is 13143617. The reversal of 13143587 is 78534131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13143587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13143187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571793 + 6571794.

It is an arithmetic number, because the mean of its divisors is an integer number (6571794).

Almost surely, 2^13143587 is an apocalyptic number.

13143587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13143587 is an equidigital number, since it uses as much as digits as its factorization.

13143587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 13143587 is about 3625.4085287040. The cubic root of 13143587 is about 235.9959960539.

The spelling of 13143587 in words is "thirteen million, one hundred forty-three thousand, five hundred eighty-seven".