1115553412 has 24 divisors (see below), whose sum is σ = 1980326880. Its totient is φ = 549785280.

The previous prime is 1115553409. The next prime is 1115553451. The reversal of 1115553412 is 2143555111.

It is an unprimeable number.

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, 113103 + ... + 122569.

It is an arithmetic number, because the mean of its divisors is an integer number (82513620).

Almost surely, 2^1115553412 is an apocalyptic number.

It is an amenable number.

1115553412 is a deficient number, since it is larger than the sum of its proper divisors (864773468).

1115553412 is a wasteful number, since it uses less digits than its factorization.

1115553412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9891 (or 9889 counting only the distinct ones).

The product of its digits is 3000, while the sum is 28.

The square root of 1115553412 is about 33399.9013770999. The cubic root of 1115553412 is about 1037.1226593514.

The spelling of 1115553412 in words is "one billion, one hundred fifteen million, five hundred fifty-three thousand, four hundred twelve".