131443552 has 24 divisors (see below), whose sum is σ = 259270200. Its totient is φ = 65597184.

The previous prime is 131443523. The next prime is 131443567. The reversal of 131443552 is 255344131.

It is a self number, because there is not a number n which added to its sum of digits gives 131443552.

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, 14599 + ... + 21817.

It is an arithmetic number, because the mean of its divisors is an integer number (10802925).

Almost surely, 2^131443552 is an apocalyptic number.

It is an amenable number.

131443552 is a deficient number, since it is larger than the sum of its proper divisors (127826648).

131443552 is an equidigital number, since it uses as much as digits as its factorization.

131443552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7798 (or 7790 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 131443552 is about 11464.8834272312. The cubic root of 131443552 is about 508.4478659303.

Adding to 131443552 its reverse (255344131), we get a palindrome (386787683).

The spelling of 131443552 in words is "one hundred thirty-one million, four hundred forty-three thousand, five hundred fifty-two".