1300680391 has 4 divisors (see below), whose sum is σ = 1304365392. Its totient is φ = 1296995392.

The previous prime is 1300680389. The next prime is 1300680401. The reversal of 1300680391 is 1930860031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1930860031 = 17053 ⋅113227.

It is a cyclic number.

It is not a de Polignac number, because 1300680391 - 2¹ = 1300680389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300680191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1841971 + ... + 1842676.

It is an arithmetic number, because the mean of its divisors is an integer number (326091348).

Almost surely, 2^1300680391 is an apocalyptic number.

1300680391 is a deficient number, since it is larger than the sum of its proper divisors (3685001).

1300680391 is an equidigital number, since it uses as much as digits as its factorization.

1300680391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685000.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1300680391 is about 36064.9468459334. The cubic root of 1300680391 is about 1091.5832534159.

The spelling of 1300680391 in words is "one billion, three hundred million, six hundred eighty thousand, three hundred ninety-one".