31104049 has 2 divisors, whose sum is σ = 31104050. Its totient is φ = 31104048.

The previous prime is 31103993. The next prime is 31104077. The reversal of 31104049 is 94040113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26010000 + 5094049 = 5100^2 + 2257^2 .

It is an emirp because it is prime and its reverse (94040113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31104049 - 2⁹ = 31103537 is a prime.

It is not a weakly prime, because it can be changed into another prime (31104079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15552024 + 15552025.

It is an arithmetic number, because the mean of its divisors is an integer number (15552025).

Almost surely, 2^31104049 is an apocalyptic number.

It is an amenable number.

31104049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31104049 is an equidigital number, since it uses as much as digits as its factorization.

31104049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 31104049 is about 5577.1004115042. The cubic root of 31104049 is about 314.4891324494.

The spelling of 31104049 in words is "thirty-one million, one hundred four thousand, forty-nine".