1159056509 has 8 divisors (see below), whose sum is σ = 1248479232. Its totient is φ = 1069671600.

The previous prime is 1159056461. The next prime is 1159056527. The reversal of 1159056509 is 9056509511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1159056509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159056599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114092 + ... + 123834.

It is an arithmetic number, because the mean of its divisors is an integer number (156059904).

Almost surely, 2^1159056509 is an apocalyptic number.

It is an amenable number.

1159056509 is a deficient number, since it is larger than the sum of its proper divisors (89422723).

1159056509 is an equidigital number, since it uses as much as digits as its factorization.

1159056509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18907.

The product of its (nonzero) digits is 60750, while the sum is 41.

The square root of 1159056509 is about 34044.9189894762. The cubic root of 1159056509 is about 1050.4326286746.

The spelling of 1159056509 in words is "one billion, one hundred fifty-nine million, fifty-six thousand, five hundred nine".