1171154671 has 2 divisors, whose sum is σ = 1171154672. Its totient is φ = 1171154670.

The previous prime is 1171154659. The next prime is 1171154693. The reversal of 1171154671 is 1764511711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1171154671 - 2⁵ = 1171154639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1171754671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585577335 + 585577336.

It is an arithmetic number, because the mean of its divisors is an integer number (585577336).

Almost surely, 2^1171154671 is an apocalyptic number.

1171154671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171154671 is an equidigital number, since it uses as much as digits as its factorization.

1171154671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 34.

The square root of 1171154671 is about 34222.1371483430. The cubic root of 1171154671 is about 1054.0747699263.

The spelling of 1171154671 in words is "one billion, one hundred seventy-one million, one hundred fifty-four thousand, six hundred seventy-one".