126724 has 12 divisors (see below), whose sum is σ = 238924. Its totient is φ = 58464.

The previous prime is 126719. The next prime is 126733. The reversal of 126724 is 427621.

It can be written as a sum of positive squares in 2 ways, for example, as 72900 + 53824 = 270^2 + 232^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 126695 and 126704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167 + ... + 1270.

2¹²⁶⁷²⁴ is an apocalyptic number.

It is an amenable number.

126724 is a deficient number, since it is larger than the sum of its proper divisors (112200).

126724 is a wasteful number, since it uses less digits than its factorization.

126724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454 (or 2452 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 126724 is about 355.9831456684. The cubic root of 126724 is about 50.2288179165.

The spelling of 126724 in words is "one hundred twenty-six thousand, seven hundred twenty-four".