131432056 has 16 divisors (see below), whose sum is σ = 281640240. Its totient is φ = 56328000.

The previous prime is 131432027. The next prime is 131432087. The reversal of 131432056 is 650234131.

It is a self number, because there is not a number n which added to its sum of digits gives 131432056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173445 + ... + 1173556.

It is an arithmetic number, because the mean of its divisors is an integer number (17602515).

Almost surely, 2^131432056 is an apocalyptic number.

It is an amenable number.

131432056 is an abundant number, since it is smaller than the sum of its proper divisors (150208184).

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

131432056 is a wasteful number, since it uses less digits than its factorization.

131432056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347014 (or 2347010 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 131432056 is about 11464.3820592302. The cubic root of 131432056 is about 508.4330426164.

Adding to 131432056 its reverse (650234131), we get a palindrome (781666187).

The spelling of 131432056 in words is "one hundred thirty-one million, four hundred thirty-two thousand, fifty-six".