131344432 has 20 divisors (see below), whose sum is σ = 255046176. Its totient is φ = 65526080.

The previous prime is 131344417. The next prime is 131344453. The reversal of 131344432 is 234443131.

It is a super-3 number, since 3×131344432³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131344397 and 131344406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528 + ... + 16279.

Almost surely, 2^131344432 is an apocalyptic number.

It is an amenable number.

131344432 is a deficient number, since it is larger than the sum of its proper divisors (123701744).

131344432 is a wasteful number, since it uses less digits than its factorization.

131344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18276 (or 18270 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 131344432 is about 11460.5598467091. The cubic root of 131344432 is about 508.3200289868.

Adding to 131344432 its reverse (234443131), we get a palindrome (365787563).

The spelling of 131344432 in words is "one hundred thirty-one million, three hundred forty-four thousand, four hundred thirty-two".