1145244205 has 8 divisors (see below), whose sum is σ = 1570620672. Its totient is φ = 785310288.

The previous prime is 1145244203. The next prime is 1145244211. The reversal of 1145244205 is 5024425411.

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

It is not a de Polignac number, because 1145244205 - 2¹ = 1145244203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145244203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16360597 + ... + 16360666.

It is an arithmetic number, because the mean of its divisors is an integer number (196327584).

Almost surely, 2^1145244205 is an apocalyptic number.

It is an amenable number.

1145244205 is a deficient number, since it is larger than the sum of its proper divisors (425376467).

1145244205 is an equidigital number, since it uses as much as digits as its factorization.

1145244205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32721275.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1145244205 is about 33841.4568983074. The cubic root of 1145244205 is about 1046.2433267865.

Adding to 1145244205 its reverse (5024425411), we get a palindrome (6169669616).

It can be divided in two parts, 1145 and 244205, that added together give a triangular number (245350 = T₇₀₀).

The spelling of 1145244205 in words is "one billion, one hundred forty-five million, two hundred forty-four thousand, two hundred five".