126606 has 8 divisors (see below), whose sum is σ = 253224. Its totient is φ = 42200.

The previous prime is 126601. The next prime is 126611. The reversal of 126606 is 606621.

It is an interprime number because it is at equal distance from previous prime (126601) and next prime (126611).

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

126606 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126601) by changing a digit.

126606 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 10545 + ... + 10556.

It is an arithmetic number, because the mean of its divisors is an integer number (31653).

2¹²⁶⁶⁰⁶ is an apocalyptic number.

126606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126606 is a wasteful number, since it uses less digits than its factorization.

126606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 126606 is about 355.8173688847. The cubic root of 126606 is about 50.2132227619.

The spelling of 126606 in words is "one hundred twenty-six thousand, six hundred six".