1608331113 has 8 divisors (see below), whose sum is σ = 2382712800. Its totient is φ = 1072220724.

The previous prime is 1608331103. The next prime is 1608331139. The reversal of 1608331113 is 3111338061.

1608331113 is a `hidden beast` number, since 1 + 608 + 33 + 11 + 13 = 666.

It is not a de Polignac number, because 1608331113 - 2²⁴ = 1591553897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 59567819 = 1608331113 / (1 + 6 + 0 + 8 + 3 + 3 + 1 + 1 + 1 + 3).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1608331103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29783883 + ... + 29783936.

It is an arithmetic number, because the mean of its divisors is an integer number (297839100).

Almost surely, 2^1608331113 is an apocalyptic number.

It is an amenable number.

1608331113 is a deficient number, since it is larger than the sum of its proper divisors (774381687).

1608331113 is an equidigital number, since it uses as much as digits as its factorization.

1608331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59567828 (or 59567822 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1608331113 is about 40104.0037028724. The cubic root of 1608331113 is about 1171.6336088784.

Adding to 1608331113 its reverse (3111338061), we get a palindrome (4719669174).

The spelling of 1608331113 in words is "one billion, six hundred eight million, three hundred thirty-one thousand, one hundred thirteen".