131478463 has 2 divisors, whose sum is σ = 131478464. Its totient is φ = 131478462.

The previous prime is 131478449. The next prime is 131478481. The reversal of 131478463 is 364874131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131478463 - 2²¹ = 129381311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131478433) 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 as a sum of consecutive naturals, namely, 65739231 + 65739232.

It is an arithmetic number, because the mean of its divisors is an integer number (65739232).

Almost surely, 2^131478463 is an apocalyptic number.

131478463 is a deficient number, since it is larger than the sum of its proper divisors (1).

131478463 is an equidigital number, since it uses as much as digits as its factorization.

131478463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 131478463 is about 11466.4058449019. The cubic root of 131478463 is about 508.4928760048.

The spelling of 131478463 in words is "one hundred thirty-one million, four hundred seventy-eight thousand, four hundred sixty-three".