131326444 has 18 divisors (see below), whose sum is σ = 235575452. Its totient is φ = 64058400.

The previous prime is 131326439. The next prime is 131326451. The reversal of 131326444 is 444623131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3042 + ... + 16489.

Almost surely, 2^131326444 is an apocalyptic number.

It is an amenable number.

131326444 is a deficient number, since it is larger than the sum of its proper divisors (104249008).

131326444 is a wasteful number, since it uses less digits than its factorization.

131326444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19617 (or 19574 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 131326444 is about 11459.7750414221. The cubic root of 131326444 is about 508.2968226278.

Adding to 131326444 its reverse (444623131), we get a palindrome (575949575).

The spelling of 131326444 in words is "one hundred thirty-one million, three hundred twenty-six thousand, four hundred forty-four".