16256287 has 2 divisors, whose sum is σ = 16256288. Its totient is φ = 16256286.

The previous prime is 16256263. The next prime is 16256309. The reversal of 16256287 is 78265261.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78265261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16256287 - 2¹⁹ = 15731999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16256257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8128143 + 8128144.

It is an arithmetic number, because the mean of its divisors is an integer number (8128144).

Almost surely, 2^16256287 is an apocalyptic number.

16256287 is a deficient number, since it is larger than the sum of its proper divisors (1).

16256287 is an equidigital number, since it uses as much as digits as its factorization.

16256287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 16256287 is about 4031.9086051150. The cubic root of 16256287 is about 253.3225120416.

The spelling of 16256287 in words is "sixteen million, two hundred fifty-six thousand, two hundred eighty-seven".