131784468 has 24 divisors (see below), whose sum is σ = 318101280. Its totient is φ = 42413280.

The previous prime is 131784467. The next prime is 131784473. The reversal of 131784468 is 864487131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131784463) 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, 188998 + ... + 189693.

It is an arithmetic number, because the mean of its divisors is an integer number (13254220).

Almost surely, 2^131784468 is an apocalyptic number.

It is an amenable number.

131784468 is an abundant number, since it is smaller than the sum of its proper divisors (186316812).

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

131784468 is a wasteful number, since it uses less digits than its factorization.

131784468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378727 (or 378725 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 131784468 is about 11479.7416347233. The cubic root of 131784468 is about 508.8870617355.

The spelling of 131784468 in words is "one hundred thirty-one million, seven hundred eighty-four thousand, four hundred sixty-eight".