426121543 has 4 divisors (see below), whose sum is σ = 426163648. Its totient is φ = 426079440.

The previous prime is 426121523. The next prime is 426121571. The reversal of 426121543 is 345121624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 426121543 - 2¹³ = 426113351 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 (426121523) 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, 4330 + ... + 29512.

It is an arithmetic number, because the mean of its divisors is an integer number (106540912).

Almost surely, 2^426121543 is an apocalyptic number.

426121543 is a deficient number, since it is larger than the sum of its proper divisors (42105).

426121543 is a wasteful number, since it uses less digits than its factorization.

426121543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42104.

The product of its digits is 5760, while the sum is 28.

The square root of 426121543 is about 20642.7116193585. The cubic root of 426121543 is about 752.5080733342.

The spelling of 426121543 in words is "four hundred twenty-six million, one hundred twenty-one thousand, five hundred forty-three".