1159911 has 6 divisors (see below), whose sum is σ = 1675440. Its totient is φ = 773268.

The previous prime is 1159909. The next prime is 1159919. The reversal of 1159911 is 1199511.

It is not a de Polignac number, because 1159911 - 2¹ = 1159909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64431 + ... + 64448.

It is an arithmetic number, because the mean of its divisors is an integer number (279240).

2^1159911 is an apocalyptic number.

1159911 is a deficient number, since it is larger than the sum of its proper divisors (515529).

1159911 is a wasteful number, since it uses less digits than its factorization.

1159911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128885 (or 128882 counting only the distinct ones).

The product of its digits is 405, while the sum is 27.

The square root of 1159911 is about 1076.9916434216. The cubic root of 1159911 is about 105.0690702011.

The spelling of 1159911 in words is "one million, one hundred fifty-nine thousand, nine hundred eleven".