1300312005 has 16 divisors (see below), whose sum is σ = 2152241280. Its totient is φ = 669585728.

The previous prime is 1300312003. The next prime is 1300312103. The reversal of 1300312005 is 5002130031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1300312005 - 2¹ = 1300312003 is a prime.

It is a super-2 number, since 2×1300312005² = 3381622620694240050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300312003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1494177 + ... + 1495046.

It is an arithmetic number, because the mean of its divisors is an integer number (134515080).

Almost surely, 2^1300312005 is an apocalyptic number.

1300312005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1300312005 is a deficient number, since it is larger than the sum of its proper divisors (851929275).

1300312005 is a wasteful number, since it uses less digits than its factorization.

1300312005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989260.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1300312005 is about 36059.8392259311. The cubic root of 1300312005 is about 1091.4801889068.

Adding to 1300312005 its reverse (5002130031), we get a palindrome (6302442036).

The spelling of 1300312005 in words is "one billion, three hundred million, three hundred twelve thousand, five".