131344047 has 12 divisors (see below), whose sum is σ = 189829224. Its totient is φ = 87511920.

The previous prime is 131344039. The next prime is 131344049. The reversal of 131344047 is 740443131.

It is not a de Polignac number, because 131344047 - 2³ = 131344039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131344047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18673 + ... + 24725.

It is an arithmetic number, because the mean of its divisors is an integer number (15819102).

Almost surely, 2^131344047 is an apocalyptic number.

131344047 is a deficient number, since it is larger than the sum of its proper divisors (58485177).

131344047 is a wasteful number, since it uses less digits than its factorization.

131344047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470 (or 8467 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 131344047 is about 11460.5430499606. The cubic root of 131344047 is about 508.3195323196.

Adding to 131344047 its reverse (740443131), we get a palindrome (871787178).

The spelling of 131344047 in words is "one hundred thirty-one million, three hundred forty-four thousand, forty-seven".