1115542245 has 8 divisors (see below), whose sum is σ = 1784867616. Its totient is φ = 594955856.

The previous prime is 1115542237. The next prime is 1115542367. The reversal of 1115542245 is 5422455111.

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 1115542245 - 2³ = 1115542237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37184727 + ... + 37184756.

It is an arithmetic number, because the mean of its divisors is an integer number (223108452).

Almost surely, 2^1115542245 is an apocalyptic number.

1115542245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115542245 is a deficient number, since it is larger than the sum of its proper divisors (669325371).

1115542245 is an equidigital number, since it uses as much as digits as its factorization.

1115542245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74369491.

The product of its digits is 8000, while the sum is 30.

The square root of 1115542245 is about 33399.7342055292. The cubic root of 1115542245 is about 1037.1191987111.

Adding to 1115542245 its reverse (5422455111), we get a palindrome (6537997356).

The spelling of 1115542245 in words is "one billion, one hundred fifteen million, five hundred forty-two thousand, two hundred forty-five".