104131187 has 2 divisors, whose sum is σ = 104131188. Its totient is φ = 104131186.

The previous prime is 104131169. The next prime is 104131211. The reversal of 104131187 is 781131401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104131187 - 2⁶ = 104131123 is a prime.

It is not a weakly prime, because it can be changed into another prime (104131127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52065593 + 52065594.

It is an arithmetic number, because the mean of its divisors is an integer number (52065594).

Almost surely, 2^104131187 is an apocalyptic number.

104131187 is a deficient number, since it is larger than the sum of its proper divisors (1).

104131187 is an equidigital number, since it uses as much as digits as its factorization.

104131187 is an odious number, because the sum of its binary digits is odd.

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

The square root of 104131187 is about 10204.4689719750. The cubic root of 104131187 is about 470.4645881429.

Adding to 104131187 its reverse (781131401), we get a palindrome (885262588).

The spelling of 104131187 in words is "one hundred four million, one hundred thirty-one thousand, one hundred eighty-seven".