1300550191 has 2 divisors, whose sum is σ = 1300550192. Its totient is φ = 1300550190.

The previous prime is 1300550189. The next prime is 1300550221. The reversal of 1300550191 is 1910550031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1300550191 - 2¹ = 1300550189 is a prime.

Together with 1300550189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1300550131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650275095 + 650275096.

It is an arithmetic number, because the mean of its divisors is an integer number (650275096).

Almost surely, 2^1300550191 is an apocalyptic number.

1300550191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300550191 is an equidigital number, since it uses as much as digits as its factorization.

1300550191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 1300550191 is about 36063.1417239264. The cubic root of 1300550191 is about 1091.5468291765.

The spelling of 1300550191 in words is "one billion, three hundred million, five hundred fifty thousand, one hundred ninety-one".