42754543 has 4 divisors (see below), whose sum is σ = 46043368. Its totient is φ = 39465720.

The previous prime is 42754511. The next prime is 42754559. The reversal of 42754543 is 34545724.

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 42754543 - 2⁵ = 42754511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42754499 and 42754508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42754043) 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, 1644393 + ... + 1644418.

It is an arithmetic number, because the mean of its divisors is an integer number (11510842).

Almost surely, 2^42754543 is an apocalyptic number.

42754543 is a deficient number, since it is larger than the sum of its proper divisors (3288825).

42754543 is a wasteful number, since it uses less digits than its factorization.

42754543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288824.

The product of its digits is 67200, while the sum is 34.

The square root of 42754543 is about 6538.6958179747. The cubic root of 42754543 is about 349.6719184106.

The spelling of 42754543 in words is "forty-two million, seven hundred fifty-four thousand, five hundred forty-three".