134331131988 has 18 divisors (see below), whose sum is σ = 339559250394. Its totient is φ = 44777043984.

The previous prime is 134331131969. The next prime is 134331131999. The reversal of 134331131988 is 889131133431.

134331131988 is a `hidden beast` number, since 1 + 3 + 433 + 1 + 131 + 9 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132458146704 + 1872985284 = 363948^2 + 43278^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1865710131 + ... + 1865710202.

Almost surely, 2^134331131988 is an apocalyptic number.

134331131988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

134331131988 is an abundant number, since it is smaller than the sum of its proper divisors (205228118406).

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

134331131988 is a wasteful number, since it uses less digits than its factorization.

134331131988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731420343 (or 3731420338 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The spelling of 134331131988 in words is "one hundred thirty-four billion, three hundred thirty-one million, one hundred thirty-one thousand, nine hundred eighty-eight".