1159065605 has 16 divisors (see below), whose sum is σ = 1399887360. Its totient is φ = 921268608.

The previous prime is 1159065587. The next prime is 1159065617. The reversal of 1159065605 is 5065609511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1159065605 - 2¹⁸ = 1158803461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560804 + ... + 562866.

It is an arithmetic number, because the mean of its divisors is an integer number (87492960).

Almost surely, 2^1159065605 is an apocalyptic number.

It is an amenable number.

1159065605 is a deficient number, since it is larger than the sum of its proper divisors (240821755).

1159065605 is a wasteful number, since it uses less digits than its factorization.

1159065605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 1159065605 is about 34045.0525774304. The cubic root of 1159065605 is about 1050.4353765159.

The spelling of 1159065605 in words is "one billion, one hundred fifty-nine million, sixty-five thousand, six hundred five".