131855086845 has 32 divisors (see below), whose sum is σ = 234424713600. Its totient is φ = 70318012032.

The previous prime is 131855086837. The next prime is 131855086897. The reversal of 131855086845 is 548680558131.

131855086845 is a `hidden beast` number, since 1 + 3 + 1 + 8 + 550 + 8 + 6 + 84 + 5 = 666.

It is not a de Polignac number, because 131855086845 - 2³ = 131855086837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131855086791 and 131855086800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3112174 + ... + 3154256.

It is an arithmetic number, because the mean of its divisors is an integer number (7325772300).

Almost surely, 2^131855086845 is an apocalyptic number.

131855086845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131855086845 is a deficient number, since it is larger than the sum of its proper divisors (102569626755).

131855086845 is a wasteful number, since it uses less digits than its factorization.

131855086845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65306 (or 65300 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 131855086845 in words is "one hundred thirty-one billion, eight hundred fifty-five million, eighty-six thousand, eight hundred forty-five".