131855800 has 24 divisors (see below), whose sum is σ = 306565200. Its totient is φ = 52742240.

The previous prime is 131855797. The next prime is 131855809. The reversal of 131855800 is 8558131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131855809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329440 + ... + 329839.

It is an arithmetic number, because the mean of its divisors is an integer number (12773550).

Almost surely, 2^131855800 is an apocalyptic number.

131855800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131855800 is an abundant number, since it is smaller than the sum of its proper divisors (174709400).

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

131855800 is a wasteful number, since it uses less digits than its factorization.

131855800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659295 (or 659286 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 131855800 is about 11482.8480787651. The cubic root of 131855800 is about 508.9788615886.

The spelling of 131855800 in words is "one hundred thirty-one million, eight hundred fifty-five thousand, eight hundred".