134331131987 has 8 divisors (see below), whose sum is σ = 144667561920. Its totient is φ = 123995168640.

The previous prime is 134331131969. The next prime is 134331131999. The reversal of 134331131987 is 789131133431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134331131987 - 2²⁴ = 134314354771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134331131087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685814 + ... + 859652.

It is an arithmetic number, because the mean of its divisors is an integer number (18083445240).

Almost surely, 2^134331131987 is an apocalyptic number.

134331131987 is a deficient number, since it is larger than the sum of its proper divisors (10336429933).

134331131987 is a wasteful number, since it uses less digits than its factorization.

134331131987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233293.

The product of its digits is 163296, while the sum is 44.

The spelling of 134331131987 in words is "one hundred thirty-four billion, three hundred thirty-one million, one hundred thirty-one thousand, nine hundred eighty-seven".