42542133 has 16 divisors (see below), whose sum is σ = 58502976. Its totient is φ = 27480960.

The previous prime is 42542131. The next prime is 42542141. The reversal of 42542133 is 33124524.

It is not a de Polignac number, because 42542133 - 2¹ = 42542131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18210 + ... + 20412.

It is an arithmetic number, because the mean of its divisors is an integer number (3656436).

Almost surely, 2^42542133 is an apocalyptic number.

It is an amenable number.

42542133 is a deficient number, since it is larger than the sum of its proper divisors (15960843).

42542133 is a wasteful number, since it uses less digits than its factorization.

42542133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404.

The product of its digits is 2880, while the sum is 24.

The square root of 42542133 is about 6522.4330582996. The cubic root of 42542133 is about 349.0918852869.

Adding to 42542133 its reverse (33124524), we get a palindrome (75666657).

The spelling of 42542133 in words is "forty-two million, five hundred forty-two thousand, one hundred thirty-three".