42560131 has 4 divisors (see below), whose sum is σ = 42664600. Its totient is φ = 42455664.

The previous prime is 42560123. The next prime is 42560137. The reversal of 42560131 is 13106524.

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 42560131 - 2³ = 42560123 is a prime.

It is a super-2 number, since 2×42560131² = 3622729501474322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42560137) 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, 51621 + ... + 52438.

It is an arithmetic number, because the mean of its divisors is an integer number (10666150).

Almost surely, 2^42560131 is an apocalyptic number.

42560131 is a deficient number, since it is larger than the sum of its proper divisors (104469).

42560131 is a wasteful number, since it uses less digits than its factorization.

42560131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104468.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 42560131 is about 6523.8126122690. The cubic root of 42560131 is about 349.1411076264.

Adding to 42560131 its reverse (13106524), we get a palindrome (55666655).

The spelling of 42560131 in words is "forty-two million, five hundred sixty thousand, one hundred thirty-one".