42131001 has 16 divisors (see below), whose sum is σ = 62124480. Its totient is φ = 25182720.

The previous prime is 42130993. The next prime is 42131021. The reversal of 42131001 is 10013124.

It is a happy number.

42131001 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 42131001 - 2³ = 42130993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42131021) by changing a digit.

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, 6336 + ... + 11153.

It is an arithmetic number, because the mean of its divisors is an integer number (3882780).

Almost surely, 2^42131001 is an apocalyptic number.

It is an amenable number.

42131001 is a deficient number, since it is larger than the sum of its proper divisors (19993479).

42131001 is a wasteful number, since it uses less digits than its factorization.

42131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17576.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 42131001 is about 6490.8397761769. The cubic root of 42131001 is about 347.9636885749.

Adding to 42131001 its reverse (10013124), we get a palindrome (52144125).

The spelling of 42131001 in words is "forty-two million, one hundred thirty-one thousand, one".