42543597 has 8 divisors (see below), whose sum is σ = 57502144. Its totient is φ = 27973728.

The previous prime is 42543581. The next prime is 42543617. The reversal of 42543597 is 79534524.

42543597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42543597 - 2⁴ = 42543581 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 (42543517) 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 7 ways as a sum of consecutive naturals, for example, 96913 + ... + 97350.

It is an arithmetic number, because the mean of its divisors is an integer number (7187768).

Almost surely, 2^42543597 is an apocalyptic number.

It is an amenable number.

42543597 is a deficient number, since it is larger than the sum of its proper divisors (14958547).

42543597 is a wasteful number, since it uses less digits than its factorization.

42543597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194339.

The product of its digits is 151200, while the sum is 39.

The square root of 42543597 is about 6522.5452853928. The cubic root of 42543597 is about 349.0958896674.

The spelling of 42543597 in words is "forty-two million, five hundred forty-three thousand, five hundred ninety-seven".