42537031 has 4 divisors (see below), whose sum is σ = 42562672. Its totient is φ = 42511392.

The previous prime is 42536987. The next prime is 42537041. The reversal of 42537031 is 13073524.

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 42537031 - 2⁹ = 42536519 is a prime.

It is a super-2 number, since 2×42537031² = 3618798012589922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42536987 and 42537005.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10146 + ... + 13711.

It is an arithmetic number, because the mean of its divisors is an integer number (10640668).

Almost surely, 2^42537031 is an apocalyptic number.

42537031 is a deficient number, since it is larger than the sum of its proper divisors (25641).

42537031 is a wasteful number, since it uses less digits than its factorization.

42537031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25640.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 42537031 is about 6522.0419348545. The cubic root of 42537031 is about 349.0779294125.

The spelling of 42537031 in words is "forty-two million, five hundred thirty-seven thousand, thirty-one".