1605013411 has 2 divisors, whose sum is σ = 1605013412. Its totient is φ = 1605013410.

The previous prime is 1605013409. The next prime is 1605013447. The reversal of 1605013411 is 1143105061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1605013411 - 2¹ = 1605013409 is a prime.

Together with 1605013409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1605011411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802506705 + 802506706.

It is an arithmetic number, because the mean of its divisors is an integer number (802506706).

Almost surely, 2^1605013411 is an apocalyptic number.

1605013411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605013411 is an equidigital number, since it uses as much as digits as its factorization.

1605013411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1605013411 is about 40062.6186238493. The cubic root of 1605013411 is about 1170.8274301373.

Adding to 1605013411 its reverse (1143105061), we get a palindrome (2748118472).

The spelling of 1605013411 in words is "one billion, six hundred five million, thirteen thousand, four hundred eleven".