42131559 has 16 divisors (see below), whose sum is σ = 60933600. Its totient is φ = 25789440.

The previous prime is 42131549. The next prime is 42131563. The reversal of 42131559 is 95513124.

It is not a de Polignac number, because 42131559 - 2⁵ = 42131527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131549) 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 15 ways as a sum of consecutive naturals, for example, 7984 + ... + 12165.

It is an arithmetic number, because the mean of its divisors is an integer number (3808350).

Almost surely, 2^42131559 is an apocalyptic number.

42131559 is a deficient number, since it is larger than the sum of its proper divisors (18802041).

42131559 is a wasteful number, since it uses less digits than its factorization.

42131559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20210.

The product of its digits is 5400, while the sum is 30.

The square root of 42131559 is about 6490.8827596869. The cubic root of 42131559 is about 347.9652247587.

The spelling of 42131559 in words is "forty-two million, one hundred thirty-one thousand, five hundred fifty-nine".