1188071 has 2 divisors, whose sum is σ = 1188072. Its totient is φ = 1188070.

The previous prime is 1188059. The next prime is 1188073. The reversal of 1188071 is 1708811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1188071 - 2⁶ = 1188007 is a prime.

Together with 1188073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1188071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1188073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594035 + 594036.

It is an arithmetic number, because the mean of its divisors is an integer number (594036).

2^1188071 is an apocalyptic number.

1188071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188071 is an equidigital number, since it uses as much as digits as its factorization.

1188071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 1188071 is about 1089.9866971665. The cubic root of 1188071 is about 105.9125599061.

The spelling of 1188071 in words is "one million, one hundred eighty-eight thousand, seventy-one".