42131045 has 16 divisors (see below), whose sum is σ = 55935360. Its totient is φ = 30206400.

The previous prime is 42131029. The next prime is 42131081. The reversal of 42131045 is 54013124.

42131045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42131045 - 2⁴ = 42131029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490 + ... + 9299.

It is an arithmetic number, because the mean of its divisors is an integer number (3495960).

Almost surely, 2^42131045 is an apocalyptic number.

It is an amenable number.

42131045 is a deficient number, since it is larger than the sum of its proper divisors (13804315).

42131045 is a wasteful number, since it uses less digits than its factorization.

42131045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10876.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 42131045 is about 6490.8431655679. The cubic root of 42131045 is about 347.9638097081.

Adding to 42131045 its reverse (54013124), we get a palindrome (96144169).

The spelling of 42131045 in words is "forty-two million, one hundred thirty-one thousand, forty-five".