13137287 has 2 divisors, whose sum is σ = 13137288. Its totient is φ = 13137286.

The previous prime is 13137281. The next prime is 13137329. The reversal of 13137287 is 78273131.

13137287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (78273131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13137287 - 2²⁰ = 12088711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13137281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6568643 + 6568644.

It is an arithmetic number, because the mean of its divisors is an integer number (6568644).

Almost surely, 2^13137287 is an apocalyptic number.

13137287 is a deficient number, since it is larger than the sum of its proper divisors (1).

13137287 is an equidigital number, since it uses as much as digits as its factorization.

13137287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 13137287 is about 3624.5395569644. The cubic root of 13137287 is about 235.9582840659.

The spelling of 13137287 in words is "thirteen million, one hundred thirty-seven thousand, two hundred eighty-seven".