131255100 has 144 divisors (see below), whose sum is σ = 425910240. Its totient is φ = 34675200.

The previous prime is 131255093. The next prime is 131255119. The reversal of 131255100 is 1552131.

131255100 is a `hidden beast` number, since 131 + 25 + 510 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466960 + ... + 467240.

It is an arithmetic number, because the mean of its divisors is an integer number (2957710).

Almost surely, 2^131255100 is an apocalyptic number.

131255100 is a gapful number since it is divisible by the number (10) 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 131255100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212955120).

131255100 is an abundant number, since it is smaller than the sum of its proper divisors (294655140).

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

131255100 is a wasteful number, since it uses less digits than its factorization.

131255100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 131255100 is about 11456.6618174755. The cubic root of 131255100 is about 508.2047606986.

It can be divided in two parts, 13125 and 5100, that added together give a square (18225 = 135²).

The spelling of 131255100 in words is "one hundred thirty-one million, two hundred fifty-five thousand, one hundred".