131183871 has 16 divisors (see below), whose sum is σ = 215276544. Its totient is φ = 69195744.

The previous prime is 131183861. The next prime is 131183879. The reversal of 131183871 is 178381131.

It is not a de Polignac number, because 131183871 - 2⁹ = 131183359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131183879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239991 + ... + 240536.

It is an arithmetic number, because the mean of its divisors is an integer number (13454784).

Almost surely, 2^131183871 is an apocalyptic number.

131183871 is a deficient number, since it is larger than the sum of its proper divisors (84092673).

131183871 is a wasteful number, since it uses less digits than its factorization.

131183871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480550.

The product of its digits is 4032, while the sum is 33.

The square root of 131183871 is about 11453.5527675914. The cubic root of 131183871 is about 508.1128138791.

The spelling of 131183871 in words is "one hundred thirty-one million, one hundred eighty-three thousand, eight hundred seventy-one".