1077129191 has 2 divisors, whose sum is σ = 1077129192. Its totient is φ = 1077129190.

The previous prime is 1077129167. The next prime is 1077129227. The reversal of 1077129191 is 1919217701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1077129191 - 2¹⁰ = 1077128167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1077125191) 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, 538564595 + 538564596.

It is an arithmetic number, because the mean of its divisors is an integer number (538564596).

Almost surely, 2^1077129191 is an apocalyptic number.

1077129191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077129191 is an equidigital number, since it uses as much as digits as its factorization.

1077129191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 38.

The square root of 1077129191 is about 32819.6464179613. The cubic root of 1077129191 is about 1025.0756845958.

The spelling of 1077129191 in words is "one billion, seventy-seven million, one hundred twenty-nine thousand, one hundred ninety-one".