1300920787 has 2 divisors, whose sum is σ = 1300920788. Its totient is φ = 1300920786.

The previous prime is 1300920769. The next prime is 1300920793. The reversal of 1300920787 is 7870290031.

It is a strong prime.

It is an emirp because it is prime and its reverse (7870290031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1300920787 - 2¹⁵ = 1300888019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1300920727) 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 as a sum of consecutive naturals, namely, 650460393 + 650460394.

It is an arithmetic number, because the mean of its divisors is an integer number (650460394).

Almost surely, 2^1300920787 is an apocalyptic number.

1300920787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300920787 is an equidigital number, since it uses as much as digits as its factorization.

1300920787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 1300920787 is about 36068.2795126133. The cubic root of 1300920787 is about 1091.6504992678.

The spelling of 1300920787 in words is "one billion, three hundred million, nine hundred twenty thousand, seven hundred eighty-seven".