126599 has 8 divisors (see below), whose sum is σ = 146448. Its totient is φ = 108160.

The previous prime is 126583. The next prime is 126601. The reversal of 126599 is 995621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126599 - 2⁴ = 126583 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126199) 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 in 7 ways as a sum of consecutive naturals, for example, 152 + ... + 525.

It is an arithmetic number, because the mean of its divisors is an integer number (18306).

2¹²⁶⁵⁹⁹ is an apocalyptic number.

126599 is a deficient number, since it is larger than the sum of its proper divisors (19849).

126599 is a wasteful number, since it uses less digits than its factorization.

126599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its digits is 4860, while the sum is 32.

The square root of 126599 is about 355.8075322418. The cubic root of 126599 is about 50.2122973212.

The spelling of 126599 in words is "one hundred twenty-six thousand, five hundred ninety-nine".