131855532 has 12 divisors (see below), whose sum is σ = 307662936. Its totient is φ = 43951840.

The previous prime is 131855473. The next prime is 131855533. The reversal of 131855532 is 235558131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 131855493 and 131855502.

It is not an unprimeable number, because it can be changed into a prime (131855533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5493969 + ... + 5493992.

It is an arithmetic number, because the mean of its divisors is an integer number (25638578).

Almost surely, 2^131855532 is an apocalyptic number.

131855532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131855532 is an abundant number, since it is smaller than the sum of its proper divisors (175807404).

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

131855532 is a wasteful number, since it uses less digits than its factorization.

131855532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987968 (or 10987966 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 131855532 is about 11482.8364091804. The cubic root of 131855532 is about 508.9785167512.

The spelling of 131855532 in words is "one hundred thirty-one million, eight hundred fifty-five thousand, five hundred thirty-two".