131631134 has 16 divisors (see below), whose sum is σ = 200070528. Its totient is φ = 64945152.

The previous prime is 131631133. The next prime is 131631173. The reversal of 131631134 is 431136131.

131631134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131631131) 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 7 ways as a sum of consecutive naturals, for example, 83219 + ... + 84785.

It is an arithmetic number, because the mean of its divisors is an integer number (12504408).

Almost surely, 2^131631134 is an apocalyptic number.

131631134 is a deficient number, since it is larger than the sum of its proper divisors (68439394).

131631134 is a wasteful number, since it uses less digits than its factorization.

131631134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its digits is 648, while the sum is 23.

The square root of 131631134 is about 11473.0612305522. The cubic root of 131631134 is about 508.6896182063.

Adding to 131631134 its reverse (431136131), we get a palindrome (562767265).

The spelling of 131631134 in words is "one hundred thirty-one million, six hundred thirty-one thousand, one hundred thirty-four".