1306606005 has 64 divisors (see below), whose sum is σ = 2370251520. Its totient is φ = 682795008.

The previous prime is 1306605961. The next prime is 1306606027. The reversal of 1306606005 is 5006066031.

It is not a de Polignac number, because 1306606005 - 2⁸ = 1306605749 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1306606005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1479294 + ... + 1480176.

It is an arithmetic number, because the mean of its divisors is an integer number (37035180).

Almost surely, 2^1306606005 is an apocalyptic number.

1306606005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1306606005 is a deficient number, since it is larger than the sum of its proper divisors (1063645515).

1306606005 is a wasteful number, since it uses less digits than its factorization.

1306606005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1306606005 is about 36147.0054776326. The cubic root of 1306606005 is about 1093.2384135716.

The spelling of 1306606005 in words is "one billion, three hundred six million, six hundred six thousand, five".