188131320147 has 8 divisors (see below), whose sum is σ = 250921735056. Its totient is φ = 125380892672.

The previous prime is 188131320109. The next prime is 188131320173. The reversal of 188131320147 is 741023131881.

It is a happy number.

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 188131320147 - 2³¹ = 185983836499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188131320197) 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, 9985878 + ... + 10004699.

It is an arithmetic number, because the mean of its divisors is an integer number (31365216882).

Almost surely, 2^188131320147 is an apocalyptic number.

188131320147 is a deficient number, since it is larger than the sum of its proper divisors (62790414909).

188131320147 is a wasteful number, since it uses less digits than its factorization.

188131320147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19993717.

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 188131320147 in words is "one hundred eighty-eight billion, one hundred thirty-one million, three hundred twenty thousand, one hundred forty-seven".