1115540045 has 8 divisors (see below), whose sum is σ = 1339119096. Its totient is φ = 892118016.

The previous prime is 1115540039. The next prime is 1115540059. The reversal of 1115540045 is 5400455111.

It can be written as a sum of positive squares in 4 ways, for example, as 538147204 + 577392841 = 23198^2 + 24029^2 .

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 1115540045 - 2⁴ = 1115540029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115539996 and 1115540023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23012 + ... + 52541.

It is an arithmetic number, because the mean of its divisors is an integer number (167389887).

Almost surely, 2^1115540045 is an apocalyptic number.

It is an amenable number.

1115540045 is a deficient number, since it is larger than the sum of its proper divisors (223579051).

1115540045 is an equidigital number, since it uses as much as digits as its factorization.

1115540045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78511.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1115540045 is about 33399.7012711192. The cubic root of 1115540045 is about 1037.1185169309.

Adding to 1115540045 its reverse (5400455111), we get a palindrome (6515995156).

The spelling of 1115540045 in words is "one billion, one hundred fifteen million, five hundred forty thousand, forty-five".