41161209 has 4 divisors (see below), whose sum is σ = 54881616. Its totient is φ = 27440804.

The previous prime is 41161193. The next prime is 41161213. The reversal of 41161209 is 90216114.

41161209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41161209 - 2⁴ = 41161193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41161259) 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 in 3 ways as a sum of consecutive naturals, for example, 6860199 + ... + 6860204.

It is an arithmetic number, because the mean of its divisors is an integer number (13720404).

Almost surely, 2^41161209 is an apocalyptic number.

It is an amenable number.

41161209 is a deficient number, since it is larger than the sum of its proper divisors (13720407).

41161209 is a wasteful number, since it uses less digits than its factorization.

41161209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720406.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 41161209 is about 6415.7001956139. The cubic root of 41161209 is about 345.2730709292.

The spelling of 41161209 in words is "forty-one million, one hundred sixty-one thousand, two hundred nine".