1115997964 has 6 divisors (see below), whose sum is σ = 1952996444. Its totient is φ = 557998980.

The previous prime is 1115997937. The next prime is 1115997979. The reversal of 1115997964 is 4697995111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139499742 + ... + 139499749.

Almost surely, 2^1115997964 is an apocalyptic number.

It is an amenable number.

1115997964 is a deficient number, since it is larger than the sum of its proper divisors (836998480).

1115997964 is a wasteful number, since it uses less digits than its factorization.

1115997964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278999495 (or 278999493 counting only the distinct ones).

The product of its digits is 612360, while the sum is 52.

The square root of 1115997964 is about 33406.5557039333. Note that the first 3 decimals coincide. The cubic root of 1115997964 is about 1037.2604067442.

The spelling of 1115997964 in words is "one billion, one hundred fifteen million, nine hundred ninety-seven thousand, nine hundred sixty-four".