1115827197 has 8 divisors (see below), whose sum is σ = 1487946240. Its totient is φ = 743796480.

The previous prime is 1115827133. The next prime is 1115827261. The reversal of 1115827197 is 7917285111.

It is an interprime number because it is at equal distance from previous prime (1115827133) and next prime (1115827261).

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

It is not a de Polignac number, because 1115827197 - 2⁶ = 1115827133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115827397) 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, 17572 + ... + 50402.

It is an arithmetic number, because the mean of its divisors is an integer number (185993280).

Almost surely, 2^1115827197 is an apocalyptic number.

It is an amenable number.

1115827197 is a deficient number, since it is larger than the sum of its proper divisors (372119043).

1115827197 is a wasteful number, since it uses less digits than its factorization.

1115827197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44163.

The product of its digits is 35280, while the sum is 42.

The square root of 1115827197 is about 33403.9997156029. Note that the first 3 decimals coincide. The cubic root of 1115827197 is about 1037.2074977817.

The spelling of 1115827197 in words is "one billion, one hundred fifteen million, eight hundred twenty-seven thousand, one hundred ninety-seven".