426131543 has 4 divisors (see below), whose sum is σ = 433117368. Its totient is φ = 419145720.

The previous prime is 426131533. The next prime is 426131561. The reversal of 426131543 is 345131624.

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 426131543 - 2⁴ = 426131527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426131533) 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 3 ways as a sum of consecutive naturals, for example, 3492821 + ... + 3492942.

It is an arithmetic number, because the mean of its divisors is an integer number (108279342).

Almost surely, 2^426131543 is an apocalyptic number.

426131543 is a deficient number, since it is larger than the sum of its proper divisors (6985825).

426131543 is an equidigital number, since it uses as much as digits as its factorization.

426131543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985824.

The product of its digits is 8640, while the sum is 29.

The square root of 426131543 is about 20642.9538341779. The cubic root of 426131543 is about 752.5139597783.

The spelling of 426131543 in words is "four hundred twenty-six million, one hundred thirty-one thousand, five hundred forty-three".