131743128 has 32 divisors (see below), whose sum is σ = 359300160. Its totient is φ = 39922080.

The previous prime is 131743067. The next prime is 131743141. The reversal of 131743128 is 821347131.

It is a junction number, because it is equal to n+sod(n) for n = 131743095 and 131743104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249250 + ... + 249777.

It is an arithmetic number, because the mean of its divisors is an integer number (11228130).

Almost surely, 2^131743128 is an apocalyptic number.

It is an amenable number.

131743128 is an abundant number, since it is smaller than the sum of its proper divisors (227557032).

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

131743128 is a wasteful number, since it uses less digits than its factorization.

131743128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499047 (or 499043 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 131743128 is about 11477.9409303237. The cubic root of 131743128 is about 508.8338445605.

The spelling of 131743128 in words is "one hundred thirty-one million, seven hundred forty-three thousand, one hundred twenty-eight".