1178907871 has 2 divisors, whose sum is σ = 1178907872. Its totient is φ = 1178907870.

The previous prime is 1178907787. The next prime is 1178907889. The reversal of 1178907871 is 1787098711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1178907871 - 2¹³ = 1178899679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1178907371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589453935 + 589453936.

It is an arithmetic number, because the mean of its divisors is an integer number (589453936).

Almost surely, 2^1178907871 is an apocalyptic number.

1178907871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178907871 is an equidigital number, since it uses as much as digits as its factorization.

1178907871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 49.

The square root of 1178907871 is about 34335.2278425526. The cubic root of 1178907871 is about 1056.3956943104.

The spelling of 1178907871 in words is "one billion, one hundred seventy-eight million, nine hundred seven thousand, eight hundred seventy-one".