131344336 has 20 divisors (see below), whose sum is σ = 254787264. Its totient is φ = 65592800.

The previous prime is 131344333. The next prime is 131344337. The reversal of 131344336 is 633443131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10071 + ... + 19081.

Almost surely, 2^131344336 is an apocalyptic number.

131344336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131344336 is a deficient number, since it is larger than the sum of its proper divisors (123442928).

131344336 is an equidigital number, since it uses as much as digits as its factorization.

131344336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9930 (or 9924 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 131344336 is about 11460.5556584312. Note that the first 3 decimals coincide. The cubic root of 131344336 is about 508.3199051426.

Adding to 131344336 its reverse (633443131), we get a palindrome (764787467).

The spelling of 131344336 in words is "one hundred thirty-one million, three hundred forty-four thousand, three hundred thirty-six".