42542999 has 4 divisors (see below), whose sum is σ = 42556800. Its totient is φ = 42529200.

The previous prime is 42542977. The next prime is 42543041. The reversal of 42542999 is 99924524.

42542999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42542999 - 2²⁴ = 25765783 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 (42542909) 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, 74 + ... + 9224.

It is an arithmetic number, because the mean of its divisors is an integer number (10639200).

Almost surely, 2^42542999 is an apocalyptic number.

42542999 is a deficient number, since it is larger than the sum of its proper divisors (13801).

42542999 is an equidigital number, since it uses as much as digits as its factorization.

42542999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13800.

The product of its digits is 233280, while the sum is 44.

The square root of 42542999 is about 6522.4994442315. The cubic root of 42542999 is about 349.0942540094.

The spelling of 42542999 in words is "forty-two million, five hundred forty-two thousand, nine hundred ninety-nine".