126287 has 4 divisors (see below), whose sum is σ = 144336. Its totient is φ = 108240.

The previous prime is 126271. The next prime is 126307. The reversal of 126287 is 782621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126287 - 2⁴ = 126271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126287.

It is not an unprimeable number, because it can be changed into a prime (126227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9014 + ... + 9027.

It is an arithmetic number, because the mean of its divisors is an integer number (36084).

2¹²⁶²⁸⁷ is an apocalyptic number.

126287 is a deficient number, since it is larger than the sum of its proper divisors (18049).

126287 is an equidigital number, since it uses as much as digits as its factorization.

126287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18048.

The product of its digits is 1344, while the sum is 26.

The square root of 126287 is about 355.3688224929. The cubic root of 126287 is about 50.1710144145.

The spelling of 126287 in words is "one hundred twenty-six thousand, two hundred eighty-seven".