126629 has 4 divisors (see below), whose sum is σ = 127680. Its totient is φ = 125580.

The previous prime is 126613. The next prime is 126631. The reversal of 126629 is 926621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 126629 - 2⁴ = 126613 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 126598 and 126607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126229) 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 3 ways as a sum of consecutive naturals, for example, 317 + ... + 594.

It is an arithmetic number, because the mean of its divisors is an integer number (31920).

2¹²⁶⁶²⁹ is an apocalyptic number.

It is an amenable number.

126629 is a deficient number, since it is larger than the sum of its proper divisors (1051).

126629 is an equidigital number, since it uses as much as digits as its factorization.

126629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050.

The product of its digits is 1296, while the sum is 26.

The square root of 126629 is about 355.8496873681. The cubic root of 126629 is about 50.2162632555.

The spelling of 126629 in words is "one hundred twenty-six thousand, six hundred twenty-nine".