104131188 has 144 divisors (see below), whose sum is σ = 322882560. Its totient is φ = 27620352.

The previous prime is 104131187. The next prime is 104131211. The reversal of 104131188 is 881131401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104131187) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466845 + ... + 467067.

It is an arithmetic number, because the mean of its divisors is an integer number (2242240).

Almost surely, 2^104131188 is an apocalyptic number.

104131188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104131188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161441280).

104131188 is an abundant number, since it is smaller than the sum of its proper divisors (218751372).

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

104131188 is a wasteful number, since it uses less digits than its factorization.

104131188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 104131188 is about 10204.4690209731. The cubic root of 104131188 is about 470.4645896489.

Adding to 104131188 its reverse (881131401), we get a palindrome (985262589).

The spelling of 104131188 in words is "one hundred four million, one hundred thirty-one thousand, one hundred eighty-eight".