126722 has 4 divisors (see below), whose sum is σ = 190086. Its totient is φ = 63360.

The previous prime is 126719. The next prime is 126733. The reversal of 126722 is 227621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 109561 + 17161 = 331^2 + 131^2 .

It is a d-powerful number, because it can be written as 1 + 2⁴ + 7⁶ + 6⁵ + 2⁸ + 2¹⁰ .

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 126694 and 126703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31679 + ... + 31682.

2¹²⁶⁷²² is an apocalyptic number.

126722 is a deficient number, since it is larger than the sum of its proper divisors (63364).

126722 is an equidigital number, since it uses as much as digits as its factorization.

126722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63363.

The product of its digits is 336, while the sum is 20.

The square root of 126722 is about 355.9803365356. The cubic root of 126722 is about 50.2285536725.

It can be divided in two parts, 126 and 722, that added together give a palindrome (848).

The spelling of 126722 in words is "one hundred twenty-six thousand, seven hundred twenty-two".