131146664 has 32 divisors (see below), whose sum is σ = 282376800. Its totient is φ = 56473920.

The previous prime is 131146651. The next prime is 131146679. The reversal of 131146664 is 466641131.

131146664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 131146664.

It is an unprimeable number.

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, 37547 + ... + 40890.

It is an arithmetic number, because the mean of its divisors is an integer number (8824275).

Almost surely, 2^131146664 is an apocalyptic number.

It is an amenable number.

131146664 is an abundant number, since it is smaller than the sum of its proper divisors (151230136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131146664 is a wasteful number, since it uses less digits than its factorization.

131146664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78473 (or 78469 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 131146664 is about 11451.9283965627. The cubic root of 131146664 is about 508.0647715373.

Adding to 131146664 its reverse (466641131), we get a palindrome (597787795).

The spelling of 131146664 in words is "one hundred thirty-one million, one hundred forty-six thousand, six hundred sixty-four".