1159145 has 16 divisors (see below), whose sum is σ = 1587600. Its totient is φ = 804864.

The previous prime is 1159139. The next prime is 1159153. The reversal of 1159145 is 5419511.

It can be written as a sum of positive squares in 8 ways, for example, as 16384 + 1142761 = 128^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159145 - 2¹⁰ = 1158121 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 581 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (99225).

2^1159145 is an apocalyptic number.

It is an amenable number.

1159145 is a deficient number, since it is larger than the sum of its proper divisors (428455).

1159145 is a wasteful number, since it uses less digits than its factorization.

1159145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its digits is 900, while the sum is 26.

The square root of 1159145 is about 1076.6359644745. The cubic root of 1159145 is about 105.0459360609.

The spelling of 1159145 in words is "one million, one hundred fifty-nine thousand, one hundred forty-five".