1115705897 has 8 divisors (see below), whose sum is σ = 1176044160. Its totient is φ = 1055529360.

The previous prime is 1115705867. The next prime is 1115705917. The reversal of 1115705897 is 7985075111.

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 1115705897 - 2¹² = 1115701801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115705867) 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, 26129 + ... + 53982.

It is an arithmetic number, because the mean of its divisors is an integer number (147005520).

Almost surely, 2^1115705897 is an apocalyptic number.

It is an amenable number.

1115705897 is a deficient number, since it is larger than the sum of its proper divisors (60338263).

1115705897 is an equidigital number, since it uses as much as digits as its factorization.

1115705897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80863.

The product of its (nonzero) digits is 88200, while the sum is 44.

The square root of 1115705897 is about 33402.1840154203. The cubic root of 1115705897 is about 1037.1699119652.

The spelling of 1115705897 in words is "one billion, one hundred fifteen million, seven hundred five thousand, eight hundred ninety-seven".