1605414313 has 2 divisors, whose sum is σ = 1605414314. Its totient is φ = 1605414312.

The previous prime is 1605414199. The next prime is 1605414319. The reversal of 1605414313 is 3134145061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1268214544 + 337199769 = 35612^2 + 18363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1605414313 - 2¹⁷ = 1605283241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1605414319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802707156 + 802707157.

It is an arithmetic number, because the mean of its divisors is an integer number (802707157).

Almost surely, 2^1605414313 is an apocalyptic number.

It is an amenable number.

1605414313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605414313 is an equidigital number, since it uses as much as digits as its factorization.

1605414313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1605414313 is about 40067.6217537303. The cubic root of 1605414313 is about 1170.9249055393.

Adding to 1605414313 its reverse (3134145061), we get a palindrome (4739559374).

The spelling of 1605414313 in words is "one billion, six hundred five million, four hundred fourteen thousand, three hundred thirteen".