126329 has 4 divisors (see below), whose sum is σ = 144384. Its totient is φ = 108276.

The previous prime is 126323. The next prime is 126337. The reversal of 126329 is 923621.

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 an emirpimes, since its reverse is a distinct semiprime: 923621 = 29 ⋅31849.

It is not a de Polignac number, because 126329 - 2¹⁶ = 60793 is a prime.

It is a d-powerful number, because it can be written as 1 + 2⁵ + 3¹⁰ + 6 + 2¹³ + 9⁵ .

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (126323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9017 + ... + 9030.

It is an arithmetic number, because the mean of its divisors is an integer number (36096).

2¹²⁶³²⁹ is an apocalyptic number.

It is an amenable number.

126329 is a deficient number, since it is larger than the sum of its proper divisors (18055).

126329 is an equidigital number, since it uses as much as digits as its factorization.

126329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18054.

The product of its digits is 648, while the sum is 23.

The square root of 126329 is about 355.4279111156. The cubic root of 126329 is about 50.1765756865.

The spelling of 126329 in words is "one hundred twenty-six thousand, three hundred twenty-nine".