126332543 has 4 divisors (see below), whose sum is σ = 126408600. Its totient is φ = 126256488.

The previous prime is 126332519. The next prime is 126332561. The reversal of 126332543 is 345233621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126332543 - 2¹⁰ = 126331519 is a prime.

It is a super-2 number, since 2×126332543² = 31919822841693698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126332743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35480 + ... + 38877.

It is an arithmetic number, because the mean of its divisors is an integer number (31602150).

Almost surely, 2^126332543 is an apocalyptic number.

126332543 is a deficient number, since it is larger than the sum of its proper divisors (76057).

126332543 is an equidigital number, since it uses as much as digits as its factorization.

126332543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76056.

The product of its digits is 12960, while the sum is 29.

The square root of 126332543 is about 11239.7750422328. The cubic root of 126332543 is about 501.7704476311.

The spelling of 126332543 in words is "one hundred twenty-six million, three hundred thirty-two thousand, five hundred forty-three".