1118232545 has 8 divisors (see below), whose sum is σ = 1420813224. Its totient is φ = 841963264.

The previous prime is 1118232491. The next prime is 1118232551. The reversal of 1118232545 is 5452328111.

It can be written as a sum of positive squares in 4 ways, for example, as 73068304 + 1045164241 = 8548^2 + 32329^2 .

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 1118232545 - 2⁶ = 1118232481 is a prime.

It is a Duffinian 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, 6577754 + ... + 6577923.

It is an arithmetic number, because the mean of its divisors is an integer number (177601653).

Almost surely, 2^1118232545 is an apocalyptic number.

It is an amenable number.

1118232545 is a deficient number, since it is larger than the sum of its proper divisors (302580679).

1118232545 is a wasteful number, since it uses less digits than its factorization.

1118232545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13155699.

The product of its digits is 9600, while the sum is 32.

The square root of 1118232545 is about 33439.9842254747. The cubic root of 1118232545 is about 1037.9522530176.

The spelling of 1118232545 in words is "one billion, one hundred eighteen million, two hundred thirty-two thousand, five hundred forty-five".