131081471 has 2 divisors, whose sum is σ = 131081472. Its totient is φ = 131081470.

The previous prime is 131081389. The next prime is 131081519. The reversal of 131081471 is 174180131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131081471 - 2¹⁸ = 130819327 is a prime.

It is a super-3 number, since 3×131081471³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131081471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131081971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65540735 + 65540736.

It is an arithmetic number, because the mean of its divisors is an integer number (65540736).

Almost surely, 2^131081471 is an apocalyptic number.

131081471 is a deficient number, since it is larger than the sum of its proper divisors (1).

131081471 is an equidigital number, since it uses as much as digits as its factorization.

131081471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 131081471 is about 11449.0816662298. The cubic root of 131081471 is about 507.9805712598.

The spelling of 131081471 in words is "one hundred thirty-one million, eighty-one thousand, four hundred seventy-one".