42537071 has 4 divisors (see below), whose sum is σ = 42791952. Its totient is φ = 42282192.

The previous prime is 42537041. The next prime is 42537083. The reversal of 42537071 is 17073524.

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 42537071 - 2¹⁰ = 42536047 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 (42537041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127190 + ... + 127523.

It is an arithmetic number, because the mean of its divisors is an integer number (10697988).

Almost surely, 2^42537071 is an apocalyptic number.

42537071 is a deficient number, since it is larger than the sum of its proper divisors (254881).

42537071 is a wasteful number, since it uses less digits than its factorization.

42537071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254880.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 42537071 is about 6522.0450013780. The cubic root of 42537071 is about 349.0780388317.

The spelling of 42537071 in words is "forty-two million, five hundred thirty-seven thousand, seventy-one".