126687 has 12 divisors (see below), whose sum is σ = 186200. Its totient is φ = 76560.

The previous prime is 126683. The next prime is 126691. The reversal of 126687 is 786621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (126683) and next prime (126691).

It is not a de Polignac number, because 126687 - 2² = 126683 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189 + ... + 537.

2¹²⁶⁶⁸⁷ is an apocalyptic number.

126687 is a deficient number, since it is larger than the sum of its proper divisors (59513).

126687 is a wasteful number, since it uses less digits than its factorization.

126687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 363 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 126687 is about 355.9311731220. The cubic root of 126687 is about 50.2239289527.

The spelling of 126687 in words is "one hundred twenty-six thousand, six hundred eighty-seven".