1155443045 has 8 divisors (see below), whose sum is σ = 1386861696. Its totient is φ = 924134416.

The previous prime is 1155443041. The next prime is 1155443059. The reversal of 1155443045 is 5403445511.

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 1155443045 - 2² = 1155443041 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 (1155443041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2297 + ... + 48126.

It is an arithmetic number, because the mean of its divisors is an integer number (173357712).

Almost surely, 2^1155443045 is an apocalyptic number.

It is an amenable number.

1155443045 is a deficient number, since it is larger than the sum of its proper divisors (231418651).

1155443045 is an equidigital number, since it uses as much as digits as its factorization.

1155443045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55011.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1155443045 is about 33991.8084985192. The cubic root of 1155443045 is about 1049.3398859178.

Adding to 1155443045 its reverse (5403445511), we get a palindrome (6558888556).

The spelling of 1155443045 in words is "one billion, one hundred fifty-five million, four hundred forty-three thousand, forty-five".