126069 has 4 divisors (see below), whose sum is σ = 168096. Its totient is φ = 84044.

The previous prime is 126067. The next prime is 126079. The reversal of 126069 is 960621.

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.

It is a cyclic number.

It is not a de Polignac number, because 126069 - 2¹ = 126067 is a prime.

It is a super-2 number, since 2×126069² = 31786785522, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126067) 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, 21009 + ... + 21014.

It is an arithmetic number, because the mean of its divisors is an integer number (42024).

2¹²⁶⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

126069 is a deficient number, since it is larger than the sum of its proper divisors (42027).

126069 is an equidigital number, since it uses as much as digits as its factorization.

126069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42026.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 126069 is about 355.0619664228. The cubic root of 126069 is about 50.1421289378.

The spelling of 126069 in words is "one hundred twenty-six thousand, sixty-nine".