1153320045 has 16 divisors (see below), whose sum is σ = 1942434240. Its totient is φ = 582729984.

The previous prime is 1153320041. The next prime is 1153320059. The reversal of 1153320045 is 5400233511.

It is not a de Polignac number, because 1153320045 - 2² = 1153320041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1153319997 and 1153320024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153320041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2023084 + ... + 2023653.

It is an arithmetic number, because the mean of its divisors is an integer number (121402140).

Almost surely, 2^1153320045 is an apocalyptic number.

1153320045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1153320045 is a deficient number, since it is larger than the sum of its proper divisors (789114195).

1153320045 is a wasteful number, since it uses less digits than its factorization.

1153320045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046764.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1153320045 is about 33960.5660288518. The cubic root of 1153320045 is about 1048.6968095393.

Adding to 1153320045 its reverse (5400233511), we get a palindrome (6553553556).

The spelling of 1153320045 in words is "one billion, one hundred fifty-three million, three hundred twenty thousand, forty-five".