131128888 has 128 divisors (see below), whose sum is σ = 307307520. Its totient is φ = 51701760.

The previous prime is 131128883. The next prime is 131128909. The reversal of 131128888 is 888821131.

It is a self number, because there is not a number n which added to its sum of digits gives 131128888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131128883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1273045 + ... + 1273147.

It is an arithmetic number, because the mean of its divisors is an integer number (2400840).

Almost surely, 2^131128888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131128888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153653760).

131128888 is an abundant number, since it is smaller than the sum of its proper divisors (176178632).

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

131128888 is a wasteful number, since it uses less digits than its factorization.

131128888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 193 counting only the distinct ones).

The product of its digits is 24576, while the sum is 40.

The square root of 131128888 is about 11451.1522564325. The cubic root of 131128888 is about 508.0418156415.

The spelling of 131128888 in words is "one hundred thirty-one million, one hundred twenty-eight thousand, eight hundred eighty-eight".