1115053443 has 48 divisors (see below), whose sum is σ = 1954420416. Its totient is φ = 598026240.

The previous prime is 1115053417. The next prime is 1115053453. The reversal of 1115053443 is 3443505111.

It is a happy number.

1115053443 is a `hidden beast` number, since 111 + 505 + 3 + 4 + 43 = 666.

It is not a de Polignac number, because 1115053443 - 2⁸ = 1115053187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1115053403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 449655 + ... + 452127.

It is an arithmetic number, because the mean of its divisors is an integer number (40717092).

Almost surely, 2^1115053443 is an apocalyptic number.

1115053443 is a deficient number, since it is larger than the sum of its proper divisors (839366973).

1115053443 is a wasteful number, since it uses less digits than its factorization.

1115053443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1115053443 is about 33392.4159503322. The cubic root of 1115053443 is about 1036.9676969033.

Adding to 1115053443 its reverse (3443505111), we get a palindrome (4558558554).

The spelling of 1115053443 in words is "one billion, one hundred fifteen million, fifty-three thousand, four hundred forty-three".