131445344471 has 32 divisors (see below), whose sum is σ = 159373025280. Its totient is φ = 105974405856.

The previous prime is 131445344413. The next prime is 131445344477. The reversal of 131445344471 is 174443544131.

It is a cyclic number.

It is not a de Polignac number, because 131445344471 - 2²² = 131441150167 is a prime.

It is a super-3 number, since 3×131445344471³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131445344477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6321590 + ... + 6342348.

It is an arithmetic number, because the mean of its divisors is an integer number (4980407040).

Almost surely, 2^131445344471 is an apocalyptic number.

131445344471 is a deficient number, since it is larger than the sum of its proper divisors (27927680809).

131445344471 is a wasteful number, since it uses less digits than its factorization.

131445344471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21443.

The product of its digits is 322560, while the sum is 41.

The spelling of 131445344471 in words is "one hundred thirty-one billion, four hundred forty-five million, three hundred forty-four thousand, four hundred seventy-one".