131344816 has 20 divisors (see below), whose sum is σ = 255303352. Its totient is φ = 65460096.

The previous prime is 131344793. The next prime is 131344859. The reversal of 131344816 is 618443131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8106 + ... + 18121.

Almost surely, 2^131344816 is an apocalyptic number.

131344816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131344816 is a deficient number, since it is larger than the sum of its proper divisors (123958536).

131344816 is a wasteful number, since it uses less digits than its factorization.

131344816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26548 (or 26542 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 131344816 is about 11460.5765998051. The cubic root of 131344816 is about 508.3205243630.

Adding to 131344816 its reverse (618443131), we get a palindrome (749787947).

The spelling of 131344816 in words is "one hundred thirty-one million, three hundred forty-four thousand, eight hundred sixteen".