405501413 has 2 divisors, whose sum is σ = 405501414. Its totient is φ = 405501412.

The previous prime is 405501373. The next prime is 405501443. The reversal of 405501413 is 314105504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235407649 + 170093764 = 15343^2 + 13042^2 .

It is a cyclic number.

It is not a de Polignac number, because 405501413 - 2⁸ = 405501157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405501443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202750706 + 202750707.

It is an arithmetic number, because the mean of its divisors is an integer number (202750707).

Almost surely, 2^405501413 is an apocalyptic number.

It is an amenable number.

405501413 is a deficient number, since it is larger than the sum of its proper divisors (1).

405501413 is an equidigital number, since it uses as much as digits as its factorization.

405501413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 405501413 is about 20137.0656501885. The cubic root of 405501413 is about 740.1688274405.

Adding to 405501413 its reverse (314105504), we get a palindrome (719606917).

The spelling of 405501413 in words is "four hundred five million, five hundred one thousand, four hundred thirteen".