41139409 has 2 divisors, whose sum is σ = 41139410. Its totient is φ = 41139408.

The previous prime is 41139403. The next prime is 41139419. The reversal of 41139409 is 90493114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 12623809 = 5340^2 + 3553^2 .

It is a cyclic number.

It is not a de Polignac number, because 41139409 - 2⁵ = 41139377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41139403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20569704 + 20569705.

It is an arithmetic number, because the mean of its divisors is an integer number (20569705).

Almost surely, 2^41139409 is an apocalyptic number.

It is an amenable number.

41139409 is a deficient number, since it is larger than the sum of its proper divisors (1).

41139409 is an equidigital number, since it uses as much as digits as its factorization.

41139409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 41139409 is about 6414.0010134081. The cubic root of 41139409 is about 345.2121050964.

The spelling of 41139409 in words is "forty-one million, one hundred thirty-nine thousand, four hundred nine".