131100255 has 64 divisors (see below), whose sum is σ = 273853440. Its totient is φ = 58665600.

The previous prime is 131100251. The next prime is 131100257. The reversal of 131100255 is 552001131.

It is not a de Polignac number, because 131100255 - 2² = 131100251 is a prime.

It is a super-2 number, since 2×131100255² = 34374553722130050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15910 + ... + 22700.

It is an arithmetic number, because the mean of its divisors is an integer number (4278960).

Almost surely, 2^131100255 is an apocalyptic number.

131100255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131100255 is an abundant number, since it is smaller than the sum of its proper divisors (142753185).

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

131100255 is a wasteful number, since it uses less digits than its factorization.

131100255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829 (or 6823 counting only the distinct ones).

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

The square root of 131100255 is about 11449.9019646458. The cubic root of 131100255 is about 508.0048346720.

Adding to 131100255 its reverse (552001131), we get a palindrome (683101386).

The spelling of 131100255 in words is "one hundred thirty-one million, one hundred thousand, two hundred fifty-five".