1608405353 has 4 divisors (see below), whose sum is σ = 1608909780. Its totient is φ = 1607900928.

The previous prime is 1608405329. The next prime is 1608405389. The reversal of 1608405353 is 3535048061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3535048061 = 29 ⋅121898209.

It can be written as a sum of positive squares in 2 ways, for example, as 755590144 + 852815209 = 27488^2 + 29203^2 .

It is a cyclic number.

It is not a de Polignac number, because 1608405353 - 2⁶ = 1608405289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1608405553) 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 in 3 ways as a sum of consecutive naturals, for example, 247400 + ... + 253817.

It is an arithmetic number, because the mean of its divisors is an integer number (402227445).

Almost surely, 2^1608405353 is an apocalyptic number.

It is an amenable number.

1608405353 is a deficient number, since it is larger than the sum of its proper divisors (504427).

1608405353 is an equidigital number, since it uses as much as digits as its factorization.

1608405353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504426.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 1608405353 is about 40104.9292855629. The cubic root of 1608405353 is about 1171.6516359998.

The spelling of 1608405353 in words is "one billion, six hundred eight million, four hundred five thousand, three hundred fifty-three".