1604613105 has 64 divisors (see below), whose sum is σ = 2945859840. Its totient is φ = 828172800.

The previous prime is 1604613097. The next prime is 1604613163. The reversal of 1604613105 is 5013164061.

It is not a de Polignac number, because 1604613105 - 2³ = 1604613097 is a prime.

It is a super-3 number, since 3×1604613105³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 723979 + ... + 726191.

It is an arithmetic number, because the mean of its divisors is an integer number (46029060).

Almost surely, 2^1604613105 is an apocalyptic number.

1604613105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1604613105 is a deficient number, since it is larger than the sum of its proper divisors (1341246735).

1604613105 is a wasteful number, since it uses less digits than its factorization.

1604613105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1604613105 is about 40057.6223083697. The cubic root of 1604613105 is about 1170.7300834500.

Adding to 1604613105 its reverse (5013164061), we get a palindrome (6617777166).

The spelling of 1604613105 in words is "one billion, six hundred four million, six hundred thirteen thousand, one hundred five".