1185659 has 2 divisors, whose sum is σ = 1185660. Its totient is φ = 1185658.

The previous prime is 1185647. The next prime is 1185661. The reversal of 1185659 is 9565811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1185659 - 2⁴ = 1185643 is a prime.

Together with 1185661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1185689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592829 + 592830.

It is an arithmetic number, because the mean of its divisors is an integer number (592830).

2^1185659 is an apocalyptic number.

1185659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185659 is an equidigital number, since it uses as much as digits as its factorization.

1185659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 35.

The square root of 1185659 is about 1088.8796995077. The cubic root of 1185659 is about 105.8408374340.

It can be divided in two parts, 11 and 85659, that multiplied together give a palindrome (942249).

The spelling of 1185659 in words is "one million, one hundred eighty-five thousand, six hundred fifty-nine".