131143032 has 96 divisors (see below), whose sum is σ = 378378000. Its totient is φ = 40891392.

The previous prime is 131143031. The next prime is 131143037. The reversal of 131143032 is 230341131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131142996 and 131143014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131143031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375594 + ... + 375942.

Almost surely, 2^131143032 is an apocalyptic number.

131143032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131143032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189189000).

131143032 is an abundant number, since it is smaller than the sum of its proper divisors (247234968).

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

131143032 is a wasteful number, since it uses less digits than its factorization.

131143032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131143032 is about 11451.7698195519. The cubic root of 131143032 is about 508.0600813474.

Adding to 131143032 its reverse (230341131), we get a palindrome (361484163).

The spelling of 131143032 in words is "one hundred thirty-one million, one hundred forty-three thousand, thirty-two".