126542343 has 8 divisors (see below), whose sum is σ = 176059008. Its totient is φ = 80693624.

The previous prime is 126542333. The next prime is 126542363. The reversal of 126542343 is 343245621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126542343 - 2⁴ = 126542327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126542343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126542303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916905 + ... + 917042.

It is an arithmetic number, because the mean of its divisors is an integer number (22007376).

Almost surely, 2^126542343 is an apocalyptic number.

126542343 is a deficient number, since it is larger than the sum of its proper divisors (49516665).

126542343 is a wasteful number, since it uses less digits than its factorization.

126542343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833973.

The product of its digits is 17280, while the sum is 30.

The square root of 126542343 is about 11249.1040976604. The cubic root of 126542343 is about 502.0480568058.

Adding to 126542343 its reverse (343245621), we get a palindrome (469787964).

The spelling of 126542343 in words is "one hundred twenty-six million, five hundred forty-two thousand, three hundred forty-three".