131443136 has 28 divisors (see below), whose sum is σ = 284546040. Its totient is φ = 59746560.

The previous prime is 131443111. The next prime is 131443157. The reversal of 131443136 is 631344131.

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, 92651 + ... + 94058.

Almost surely, 2^131443136 is an apocalyptic number.

131443136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131443136 is an abundant number, since it is smaller than the sum of its proper divisors (153102904).

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

131443136 is a wasteful number, since it uses less digits than its factorization.

131443136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186732 (or 186722 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 131443136 is about 11464.8652848605. The cubic root of 131443136 is about 508.4473295415.

Adding to 131443136 its reverse (631344131), we get a palindrome (762787267).

The spelling of 131443136 in words is "one hundred thirty-one million, four hundred forty-three thousand, one hundred thirty-six".