409303061 has 2 divisors, whose sum is σ = 409303062. Its totient is φ = 409303060.

The previous prime is 409303051. The next prime is 409303091. The reversal of 409303061 is 160303904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224070961 + 185232100 = 14969^2 + 13610^2 .

It is a cyclic number.

It is not a de Polignac number, because 409303061 - 2¹⁰ = 409302037 is a prime.

It is equal to p_21805532 and since 409303061 and 21805532 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409303061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409303021) 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, 204651530 + 204651531.

It is an arithmetic number, because the mean of its divisors is an integer number (204651531).

Almost surely, 2^409303061 is an apocalyptic number.

It is an amenable number.

409303061 is a deficient number, since it is larger than the sum of its proper divisors (1).

409303061 is an equidigital number, since it uses as much as digits as its factorization.

409303061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 409303061 is about 20231.2397296854. The cubic root of 409303061 is about 742.4747079172.

Adding to 409303061 its reverse (160303904), we get a palindrome (569606965).

The spelling of 409303061 in words is "four hundred nine million, three hundred three thousand, sixty-one".