42543351 has 12 divisors (see below), whose sum is σ = 61508928. Its totient is φ = 28335744.

The previous prime is 42543341. The next prime is 42543359. The reversal of 42543351 is 15334524.

42543351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42543351 - 2⁶ = 42543287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42543359) 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 11 ways as a sum of consecutive naturals, for example, 15111 + ... + 17703.

It is an arithmetic number, because the mean of its divisors is an integer number (5125744).

Almost surely, 2^42543351 is an apocalyptic number.

42543351 is a deficient number, since it is larger than the sum of its proper divisors (18965577).

42543351 is a wasteful number, since it uses less digits than its factorization.

42543351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422 (or 4419 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 42543351 is about 6522.5264276966. The cubic root of 42543351 is about 349.0952168066.

Adding to 42543351 its reverse (15334524), we get a palindrome (57877875).

The spelling of 42543351 in words is "forty-two million, five hundred forty-three thousand, three hundred fifty-one".