15287 has 2 divisors, whose sum is σ = 15288. Its totient is φ = 15286.

The previous prime is 15277. The next prime is 15289. The reversal of 15287 is 78251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15287 - 2⁴ = 15271 is a prime.

Together with 15289, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 8 and base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7643 + 7644.

It is an arithmetic number, because the mean of its divisors is an integer number (7644).

2¹⁵²⁸⁷ is an apocalyptic number.

15287 is a deficient number, since it is larger than the sum of its proper divisors (1).

15287 is an equidigital number, since it uses as much as digits as its factorization.

15287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 23.

The square root of 15287 is about 123.6406082159. The cubic root of 15287 is about 24.8184176404.

The spelling of 15287 in words is "fifteen thousand, two hundred eighty-seven".