1188559 has 2 divisors, whose sum is σ = 1188560. Its totient is φ = 1188558.

The previous prime is 1188557. The next prime is 1188581. The reversal of 1188559 is 9558811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1188559 - 2¹ = 1188557 is a prime.

Together with 1188557, it forms a pair of twin primes.

1188559 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1188553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594279 + 594280.

It is an arithmetic number, because the mean of its divisors is an integer number (594280).

2^1188559 is an apocalyptic number.

1188559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188559 is an equidigital number, since it uses as much as digits as its factorization.

1188559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 37.

The square root of 1188559 is about 1090.2105301271. The cubic root of 1188559 is about 105.9270591109.

The spelling of 1188559 in words is "one million, one hundred eighty-eight thousand, five hundred fifty-nine".