131613044 has 6 divisors (see below), whose sum is σ = 230322834. Its totient is φ = 65806520.

The previous prime is 131613029. The next prime is 131613071. The reversal of 131613044 is 440316131.

It can be written as a sum of positive squares in only one way, i.e., 114490000 + 17123044 = 10700^2 + 4138^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 16451627 + ... + 16451634.

It is an arithmetic number, because the mean of its divisors is an integer number (38387139).

Almost surely, 2^131613044 is an apocalyptic number.

It is an amenable number.

131613044 is a deficient number, since it is larger than the sum of its proper divisors (98709790).

131613044 is a wasteful number, since it uses less digits than its factorization.

131613044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32903265 (or 32903263 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 131613044 is about 11472.2728349704. The cubic root of 131613044 is about 508.6663141533. Note that the first 3 decimals are identical.

Adding to 131613044 its reverse (440316131), we get a palindrome (571929175).

The spelling of 131613044 in words is "one hundred thirty-one million, six hundred thirteen thousand, forty-four".