405243301 has 2 divisors, whose sum is σ = 405243302. Its totient is φ = 405243300.

The previous prime is 405243299. The next prime is 405243323. The reversal of 405243301 is 103342504.

It is an a-pointer prime, because the next prime (405243323) can be obtained adding 405243301 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352463076 + 52780225 = 18774^2 + 7265^2 .

It is a cyclic number.

It is not a de Polignac number, because 405243301 - 2¹ = 405243299 is a prime.

Together with 405243299, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405243341) 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, 202621650 + 202621651.

It is an arithmetic number, because the mean of its divisors is an integer number (202621651).

Almost surely, 2^405243301 is an apocalyptic number.

It is an amenable number.

405243301 is a deficient number, since it is larger than the sum of its proper divisors (1).

405243301 is an equidigital number, since it uses as much as digits as its factorization.

405243301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 405243301 is about 20130.6557518626. The cubic root of 405243301 is about 740.0117486569.

Adding to 405243301 its reverse (103342504), we get a palindrome (508585805).

The spelling of 405243301 in words is "four hundred five million, two hundred forty-three thousand, three hundred one".