126668 has 6 divisors (see below), whose sum is σ = 221676. Its totient is φ = 63332.

The previous prime is 126653. The next prime is 126683. The reversal of 126668 is 866621.

It is an interprime number because it is at equal distance from previous prime (126653) and next prime (126683).

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 126668.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 15830 + ... + 15837.

It is an arithmetic number, because the mean of its divisors is an integer number (36946).

2¹²⁶⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

126668 is a deficient number, since it is larger than the sum of its proper divisors (95008).

126668 is a wasteful number, since it uses less digits than its factorization.

126668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31671 (or 31669 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 126668 is about 355.9044815677. The cubic root of 126668 is about 50.2214180337.

The spelling of 126668 in words is "one hundred twenty-six thousand, six hundred sixty-eight".