1300730505 has 16 divisors (see below), whose sum is σ = 2120437440. Its totient is φ = 680633408.

The previous prime is 1300730479. The next prime is 1300730507. The reversal of 1300730505 is 5050370031.

It is a cyclic number.

It is not a de Polignac number, because 1300730505 - 2⁷ = 1300730377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300730507) 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, 817275 + ... + 818864.

It is an arithmetic number, because the mean of its divisors is an integer number (132527340).

Almost surely, 2^1300730505 is an apocalyptic number.

1300730505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1300730505 is a deficient number, since it is larger than the sum of its proper divisors (819706935).

1300730505 is a wasteful number, since it uses less digits than its factorization.

1300730505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636200.

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 1300730505 is about 36065.6416135912. The cubic root of 1300730505 is about 1091.5972724635.

The spelling of 1300730505 in words is "one billion, three hundred million, seven hundred thirty thousand, five hundred five".