126587 has 4 divisors (see below), whose sum is σ = 127920. Its totient is φ = 125256.

The previous prime is 126583. The next prime is 126601. The reversal of 126587 is 785621.

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 126587 - 2² = 126583 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126587.

It is not an unprimeable number, because it can be changed into a prime (126583) 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 in 3 ways as a sum of consecutive naturals, for example, 512 + ... + 717.

It is an arithmetic number, because the mean of its divisors is an integer number (31980).

2¹²⁶⁵⁸⁷ is an apocalyptic number.

126587 is a deficient number, since it is larger than the sum of its proper divisors (1333).

126587 is a wasteful number, since it uses less digits than its factorization.

126587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its digits is 3360, while the sum is 29.

The square root of 126587 is about 355.7906687928. The cubic root of 126587 is about 50.2107107720.

The spelling of 126587 in words is "one hundred twenty-six thousand, five hundred eighty-seven".