41031209 has 2 divisors, whose sum is σ = 41031210. Its totient is φ = 41031208.

The previous prime is 41031191. The next prime is 41031227. The reversal of 41031209 is 90213014.

It is a balanced prime because it is at equal distance from previous prime (41031191) and next prime (41031227).

It can be written as a sum of positive squares in only one way, i.e., 35366809 + 5664400 = 5947^2 + 2380^2 .

It is a cyclic number.

It is not a de Polignac number, because 41031209 - 2¹² = 41027113 is a prime.

It is a super-2 number, since 2×41031209² = 3367120224003362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (41031239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20515604 + 20515605.

It is an arithmetic number, because the mean of its divisors is an integer number (20515605).

Almost surely, 2^41031209 is an apocalyptic number.

It is an amenable number.

41031209 is a deficient number, since it is larger than the sum of its proper divisors (1).

41031209 is an equidigital number, since it uses as much as digits as its factorization.

41031209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 41031209 is about 6405.5607873160. The cubic root of 41031209 is about 344.9091940529.

The spelling of 41031209 in words is "forty-one million, thirty-one thousand, two hundred nine".