1115444513 has 8 divisors (see below), whose sum is σ = 1149065280. Its totient is φ = 1082006640.

The previous prime is 1115444489. The next prime is 1115444543. The reversal of 1115444513 is 3154445111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1115444513 - 2¹⁴ = 1115428129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115444543) 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, 33293 + ... + 57786.

It is an arithmetic number, because the mean of its divisors is an integer number (143633160).

Almost surely, 2^1115444513 is an apocalyptic number.

It is an amenable number.

1115444513 is a deficient number, since it is larger than the sum of its proper divisors (33620767).

1115444513 is an equidigital number, since it uses as much as digits as its factorization.

1115444513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91447.

The product of its digits is 4800, while the sum is 29.

The square root of 1115444513 is about 33398.2711079481. The cubic root of 1115444513 is about 1037.0889106922.

Adding to 1115444513 its reverse (3154445111), we get a palindrome (4269889624).

The spelling of 1115444513 in words is "one billion, one hundred fifteen million, four hundred forty-four thousand, five hundred thirteen".