1161659 has 2 divisors, whose sum is σ = 1161660. Its totient is φ = 1161658.

The previous prime is 1161647. The next prime is 1161683. The reversal of 1161659 is 9561611.

1161659 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is an emirp because it is prime and its reverse (9561611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161659 - 2⁸ = 1161403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580829 + 580830.

It is an arithmetic number, because the mean of its divisors is an integer number (580830).

2^1161659 is an apocalyptic number.

1161659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161659 is an equidigital number, since it uses as much as digits as its factorization.

1161659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 29.

The square root of 1161659 is about 1077.8028576692. The cubic root of 1161659 is about 105.1218238326.

The spelling of 1161659 in words is "one million, one hundred sixty-one thousand, six hundred fifty-nine".