31044109 has 2 divisors, whose sum is σ = 31044110. Its totient is φ = 31044108.

The previous prime is 31044049. The next prime is 31044133. The reversal of 31044109 is 90144013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18062500 + 12981609 = 4250^2 + 3603^2 .

It is a cyclic number.

It is not a de Polignac number, because 31044109 - 2¹¹ = 31042061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31044109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31044809) 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, 15522054 + 15522055.

It is an arithmetic number, because the mean of its divisors is an integer number (15522055).

Almost surely, 2^31044109 is an apocalyptic number.

It is an amenable number.

31044109 is a deficient number, since it is larger than the sum of its proper divisors (1).

31044109 is an equidigital number, since it uses as much as digits as its factorization.

31044109 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 31044109 is about 5571.7240599297. The cubic root of 31044109 is about 314.2869872735.

The spelling of 31044109 in words is "thirty-one million, forty-four thousand, one hundred nine".