131443252 has 48 divisors (see below), whose sum is σ = 255951360. Its totient is φ = 58747392.

The previous prime is 131443241. The next prime is 131443259. The reversal of 131443252 is 252344131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131443259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357973 + ... + 358339.

It is an arithmetic number, because the mean of its divisors is an integer number (5332320).

Almost surely, 2^131443252 is an apocalyptic number.

It is an amenable number.

131443252 is a deficient number, since it is larger than the sum of its proper divisors (124508108).

131443252 is a wasteful number, since it uses less digits than its factorization.

131443252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 131443252 is about 11464.8703437937. The cubic root of 131443252 is about 508.4474791116.

Adding to 131443252 its reverse (252344131), we get a palindrome (383787383).

The spelling of 131443252 in words is "one hundred thirty-one million, four hundred forty-three thousand, two hundred fifty-two".