104131549 has 2 divisors, whose sum is σ = 104131550. Its totient is φ = 104131548.

The previous prime is 104131541. The next prime is 104131553. The reversal of 104131549 is 945131401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57304900 + 46826649 = 7570^2 + 6843^2 .

It is an emirp because it is prime and its reverse (945131401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104131549 - 2³ = 104131541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104131541) 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, 52065774 + 52065775.

It is an arithmetic number, because the mean of its divisors is an integer number (52065775).

Almost surely, 2^104131549 is an apocalyptic number.

It is an amenable number.

104131549 is a deficient number, since it is larger than the sum of its proper divisors (1).

104131549 is an equidigital number, since it uses as much as digits as its factorization.

104131549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 104131549 is about 10204.4867092863. The cubic root of 104131549 is about 470.4651333141.

The spelling of 104131549 in words is "one hundred four million, one hundred thirty-one thousand, five hundred forty-nine".