131438171 has 8 divisors (see below), whose sum is σ = 139346304. Its totient is φ = 123759360.

The previous prime is 131438159. The next prime is 131438173. The reversal of 131438171 is 171834131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131438171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131438173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56150 + ... + 58443.

It is an arithmetic number, because the mean of its divisors is an integer number (17418288).

Almost surely, 2^131438171 is an apocalyptic number.

131438171 is a deficient number, since it is larger than the sum of its proper divisors (7908133).

131438171 is a wasteful number, since it uses less digits than its factorization.

131438171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114661.

The product of its digits is 2016, while the sum is 29.

The square root of 131438171 is about 11464.6487517063. The cubic root of 131438171 is about 508.4409276026.

The spelling of 131438171 in words is "one hundred thirty-one million, four hundred thirty-eight thousand, one hundred seventy-one".