1155159 has 6 divisors (see below), whose sum is σ = 1668576. Its totient is φ = 770100.

The previous prime is 1155151. The next prime is 1155169. The reversal of 1155159 is 9515511.

It is not a de Polignac number, because 1155159 - 2³ = 1155151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155151) 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, 64167 + ... + 64184.

It is an arithmetic number, because the mean of its divisors is an integer number (278096).

2^1155159 is an apocalyptic number.

1155159 is a deficient number, since it is larger than the sum of its proper divisors (513417).

1155159 is a wasteful number, since it uses less digits than its factorization.

1155159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128357 (or 128354 counting only the distinct ones).

The product of its digits is 1125, while the sum is 27.

The square root of 1155159 is about 1074.7832339593. The cubic root of 1155159 is about 104.9253891725.

The spelling of 1155159 in words is "one million, one hundred fifty-five thousand, one hundred fifty-nine".