126393 has 4 divisors (see below), whose sum is σ = 168528. Its totient is φ = 84260.

The previous prime is 126359. The next prime is 126397. The reversal of 126393 is 393621.

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 a de Polignac number, because none of the positive numbers 2^k-126393 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (126397) 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, 21063 + ... + 21068.

It is an arithmetic number, because the mean of its divisors is an integer number (42132).

2¹²⁶³⁹³ is an apocalyptic number.

It is an amenable number.

126393 is a deficient number, since it is larger than the sum of its proper divisors (42135).

126393 is an equidigital number, since it uses as much as digits as its factorization.

126393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42134.

The product of its digits is 972, while the sum is 24.

The square root of 126393 is about 355.5179320372. The cubic root of 126393 is about 50.1850476359.

The spelling of 126393 in words is "one hundred twenty-six thousand, three hundred ninety-three".