131043831 has 16 divisors (see below), whose sum is σ = 179340000. Its totient is φ = 85063680.

The previous prime is 131043827. The next prime is 131043841. The reversal of 131043831 is 138340131.

It is not a de Polignac number, because 131043831 - 2² = 131043827 is a prime.

It is a super-2 number, since 2×131043831² = 34344971286313122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131043841) 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, 104295 + ... + 105543.

It is an arithmetic number, because the mean of its divisors is an integer number (11208750).

Almost surely, 2^131043831 is an apocalyptic number.

131043831 is a deficient number, since it is larger than the sum of its proper divisors (48296169).

131043831 is a wasteful number, since it uses less digits than its factorization.

131043831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 131043831 is about 11447.4377482474. The cubic root of 131043831 is about 507.9319444554.

Adding to 131043831 its reverse (138340131), we get a palindrome (269383962).

The spelling of 131043831 in words is "one hundred thirty-one million, forty-three thousand, eight hundred thirty-one".