1115505156 has 24 divisors (see below), whose sum is σ = 2673193600. Its totient is φ = 361785312.

The previous prime is 1115505113. The next prime is 1115505161. The reversal of 1115505156 is 6515055111.

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 in 7 ways as a sum of consecutive naturals, for example, 1255756 + ... + 1256643.

Almost surely, 2^1115505156 is an apocalyptic number.

It is an amenable number.

1115505156 is an abundant number, since it is smaller than the sum of its proper divisors (1557688444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115505156 is a wasteful number, since it uses less digits than its factorization.

1115505156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512443 (or 2512441 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 1115505156 is about 33399.1789719448. The cubic root of 1115505156 is about 1037.1077047073.

The spelling of 1115505156 in words is "one billion, one hundred fifteen million, five hundred five thousand, one hundred fifty-six".