1159643047 has 8 divisors (see below), whose sum is σ = 1175272560. Its totient is φ = 1144116480.

The previous prime is 1159643041. The next prime is 1159643059. The reversal of 1159643047 is 7403469511.

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

It is a cyclic number.

It is not a de Polignac number, because 1159643047 - 2⁷ = 1159642919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159643041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2922 + ... + 48247.

It is an arithmetic number, because the mean of its divisors is an integer number (146909070).

Almost surely, 2^1159643047 is an apocalyptic number.

1159643047 is a deficient number, since it is larger than the sum of its proper divisors (15629513).

1159643047 is a wasteful number, since it uses less digits than its factorization.

1159643047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51473.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1159643047 is about 34053.5320781854. The cubic root of 1159643047 is about 1050.6097885022.

The spelling of 1159643047 in words is "one billion, one hundred fifty-nine million, six hundred forty-three thousand, forty-seven".