42131697 has 8 divisors (see below), whose sum is σ = 57987840. Its totient is φ = 27181680.

The previous prime is 42131681. The next prime is 42131717. The reversal of 42131697 is 79613124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42131697 - 2⁴ = 42131681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42131657) 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 7 ways as a sum of consecutive naturals, for example, 226422 + ... + 226607.

It is an arithmetic number, because the mean of its divisors is an integer number (7248480).

Almost surely, 2^42131697 is an apocalyptic number.

It is an amenable number.

42131697 is a deficient number, since it is larger than the sum of its proper divisors (15856143).

42131697 is a wasteful number, since it uses less digits than its factorization.

42131697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453063.

The product of its digits is 9072, while the sum is 33.

The square root of 42131697 is about 6490.8933899734. The cubic root of 42131697 is about 347.9656046730.

The spelling of 42131697 in words is "forty-two million, one hundred thirty-one thousand, six hundred ninety-seven".