1115005456 has 20 divisors (see below), whose sum is σ = 2234817900. Its totient is φ = 538278272.

The previous prime is 1115005433. The next prime is 1115005457. The reversal of 1115005456 is 6545005111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 949625856 + 165379600 = 30816^2 + 12860^2 .

It is not an unprimeable number, because it can be changed into a prime (1115005457) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1201051 + ... + 1201978.

It is an arithmetic number, because the mean of its divisors is an integer number (111740895).

Almost surely, 2^1115005456 is an apocalyptic number.

1115005456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1115005456 is an abundant number, since it is smaller than the sum of its proper divisors (1119812444).

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

1115005456 is a wasteful number, since it uses less digits than its factorization.

1115005456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403066 (or 2403060 counting only the distinct ones).

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

The square root of 1115005456 is about 33391.6974111829. The cubic root of 1115005456 is about 1036.9528211791.

The spelling of 1115005456 in words is "one billion, one hundred fifteen million, five thousand, four hundred fifty-six".