1300780117 has 18 divisors (see below), whose sum is σ = 1630689858. Its totient is φ = 1028468448.

The previous prime is 1300780087. The next prime is 1300780133. The reversal of 1300780117 is 7110870031.

It can be written as a sum of positive squares in 3 ways, for example, as 132917841 + 1167862276 = 11529^2 + 34174^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1300780117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300780417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 909559 + ... + 910987.

It is an arithmetic number, because the mean of its divisors is an integer number (90593881).

Almost surely, 2^1300780117 is an apocalyptic number.

It is an amenable number.

1300780117 is a deficient number, since it is larger than the sum of its proper divisors (329909741).

1300780117 is an frugal number, since it uses more digits than its factorization.

1300780117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885 (or 1449 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 1300780117 is about 36066.3294084663. The cubic root of 1300780117 is about 1091.6111507252.

The spelling of 1300780117 in words is "one billion, three hundred million, seven hundred eighty thousand, one hundred seventeen".