1159999047 has 6 divisors (see below), whose sum is σ = 1675554192. Its totient is φ = 773332692.

The previous prime is 1159999031. The next prime is 1159999079. The reversal of 1159999047 is 7409999511.

1159999047 is a `hidden beast` number, since 1 + 1 + 599 + 9 + 9 + 0 + 47 = 666.

It is not a de Polignac number, because 1159999047 - 2⁴ = 1159999031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1159998984 and 1159999002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159994047) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 64444383 + ... + 64444400.

It is an arithmetic number, because the mean of its divisors is an integer number (279259032).

Almost surely, 2^1159999047 is an apocalyptic number.

1159999047 is a deficient number, since it is larger than the sum of its proper divisors (515555145).

1159999047 is a wasteful number, since it uses less digits than its factorization.

1159999047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128888789 (or 128888786 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 54.

The square root of 1159999047 is about 34058.7587413282. The cubic root of 1159999047 is about 1050.7172867589.

The spelling of 1159999047 in words is "one billion, one hundred fifty-nine million, nine hundred ninety-nine thousand, forty-seven".