104131487 has 2 divisors, whose sum is σ = 104131488. Its totient is φ = 104131486.

The previous prime is 104131459. The next prime is 104131501. The reversal of 104131487 is 784131401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104131487 - 2⁸ = 104131231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104131427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52065743 + 52065744.

It is an arithmetic number, because the mean of its divisors is an integer number (52065744).

Almost surely, 2^104131487 is an apocalyptic number.

104131487 is a deficient number, since it is larger than the sum of its proper divisors (1).

104131487 is an equidigital number, since it uses as much as digits as its factorization.

104131487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 104131487 is about 10204.4836714064. The cubic root of 104131487 is about 470.4650399424.

Adding to 104131487 its reverse (784131401), we get a palindrome (888262888).

It can be divided in two parts, 1041314 and 87, that added together give a palindrome (1041401).

The spelling of 104131487 in words is "one hundred four million, one hundred thirty-one thousand, four hundred eighty-seven".