126342 has 12 divisors (see below), whose sum is σ = 273780. Its totient is φ = 42108.

The previous prime is 126341. The next prime is 126349. The reversal of 126342 is 243621.

It is a happy number.

126342 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7019 = 126342 / (1 + 2 + 6 + 3 + 4 + 2).

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126342.

It is not an unprimeable number, because it can be changed into a prime (126341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3492 + ... + 3527.

It is an arithmetic number, because the mean of its divisors is an integer number (22815).

2¹²⁶³⁴² is an apocalyptic number.

126342 is an abundant number, since it is smaller than the sum of its proper divisors (147438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126342 is a wasteful number, since it uses less digits than its factorization.

126342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027 (or 7024 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 126342 is about 355.4461984605. The cubic root of 126342 is about 50.1782967827.

Adding to 126342 its reverse (243621), we get a palindrome (369963).

The spelling of 126342 in words is "one hundred twenty-six thousand, three hundred forty-two".