1159947099 has 24 divisors (see below), whose sum is σ = 1688646960. Its totient is φ = 767247552.

The previous prime is 1159947091. The next prime is 1159947127. The reversal of 1159947099 is 9907499511.

1159947099 is a `hidden beast` number, since 1 + 1 + 599 + 47 + 0 + 9 + 9 = 666.

It is not a de Polignac number, because 1159947099 - 2³ = 1159947091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1159947091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 684297 + ... + 685989.

It is an arithmetic number, because the mean of its divisors is an integer number (70360290).

Almost surely, 2^1159947099 is an apocalyptic number.

1159947099 is a deficient number, since it is larger than the sum of its proper divisors (528699861).

1159947099 is a wasteful number, since it uses less digits than its factorization.

1159947099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251 (or 2248 counting only the distinct ones).

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

The square root of 1159947099 is about 34057.9961095776. The cubic root of 1159947099 is about 1050.7016018390.

The spelling of 1159947099 in words is "one billion, one hundred fifty-nine million, nine hundred forty-seven thousand, ninety-nine".