131444530555 has 16 divisors (see below), whose sum is σ = 172402108704. Its totient is φ = 95617969920.

The previous prime is 131444530531. The next prime is 131444530577. The reversal of 131444530555 is 555035444131.

It is not a de Polignac number, because 131444530555 - 2¹¹ = 131444528507 is a prime.

It is a super-2 number, since 2×131444530555² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15086866 + ... + 15095575.

It is an arithmetic number, because the mean of its divisors is an integer number (10775131794).

Almost surely, 2^131444530555 is an apocalyptic number.

131444530555 is a deficient number, since it is larger than the sum of its proper divisors (40957578149).

131444530555 is a wasteful number, since it uses less digits than its factorization.

131444530555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30182526.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 131444530555 its reverse (555035444131), we get a palindrome (686479974686).

The spelling of 131444530555 in words is "one hundred thirty-one billion, four hundred forty-four million, five hundred thirty thousand, five hundred fifty-five".