1115192947 has 8 divisors (see below), whose sum is σ = 1223297712. Its totient is φ = 1008208800.

The previous prime is 1115192929. The next prime is 1115192963. The reversal of 1115192947 is 7492915111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115192947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115192147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278068 + ... + 282049.

It is an arithmetic number, because the mean of its divisors is an integer number (152912214).

Almost surely, 2^1115192947 is an apocalyptic number.

1115192947 is a deficient number, since it is larger than the sum of its proper divisors (108104765).

1115192947 is a wasteful number, since it uses less digits than its factorization.

1115192947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560309.

The product of its digits is 22680, while the sum is 40.

The square root of 1115192947 is about 33394.5047425471. The cubic root of 1115192947 is about 1037.0109400053.

The spelling of 1115192947 in words is "one billion, one hundred fifteen million, one hundred ninety-two thousand, nine hundred forty-seven".