1153320385 has 8 divisors (see below), whose sum is σ = 1581696576. Its totient is φ = 790848240.

The previous prime is 1153320367. The next prime is 1153320403. The reversal of 1153320385 is 5830233511.

It is an interprime number because it is at equal distance from previous prime (1153320367) and next prime (1153320403).

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

It is not a de Polignac number, because 1153320385 - 2¹⁹ = 1152796097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16475971 + ... + 16476040.

It is an arithmetic number, because the mean of its divisors is an integer number (197712072).

Almost surely, 2^1153320385 is an apocalyptic number.

It is an amenable number.

1153320385 is a deficient number, since it is larger than the sum of its proper divisors (428376191).

1153320385 is an equidigital number, since it uses as much as digits as its factorization.

1153320385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32952023.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1153320385 is about 33960.5710346572. The cubic root of 1153320385 is about 1048.6969125916.

Adding to 1153320385 its reverse (5830233511), we get a palindrome (6983553896).

The spelling of 1153320385 in words is "one billion, one hundred fifty-three million, three hundred twenty thousand, three hundred eighty-five".