1115054644 has 24 divisors (see below), whose sum is σ = 2186277408. Its totient is φ = 493143840.

The previous prime is 1115054641. The next prime is 1115054657. The reversal of 1115054644 is 4464505111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115054641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340834 + ... + 344089.

It is an arithmetic number, because the mean of its divisors is an integer number (91094892).

Almost surely, 2^1115054644 is an apocalyptic number.

It is an amenable number.

1115054644 is a deficient number, since it is larger than the sum of its proper divisors (1071222764).

1115054644 is a wasteful number, since it uses less digits than its factorization.

1115054644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684975 (or 684973 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1115054644 is about 33392.4339334526. The cubic root of 1115054644 is about 1036.9680692017.

Adding to 1115054644 its reverse (4464505111), we get a palindrome (5579559755).

The spelling of 1115054644 in words is "one billion, one hundred fifteen million, fifty-four thousand, six hundred forty-four".