1153440223 has 16 divisors (see below), whose sum is σ = 1262610496. Its totient is φ = 1047271680.

The previous prime is 1153440203. The next prime is 1153440241. The reversal of 1153440223 is 3220443511.

It is not a de Polignac number, because 1153440223 - 2⁹ = 1153439711 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 (1153440203) 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, 398086 + ... + 400972.

It is an arithmetic number, because the mean of its divisors is an integer number (78913156).

Almost surely, 2^1153440223 is an apocalyptic number.

1153440223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1153440223 is a deficient number, since it is larger than the sum of its proper divisors (109170273).

1153440223 is a wasteful number, since it uses less digits than its factorization.

1153440223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1153440223 is about 33962.3353584526. The cubic root of 1153440223 is about 1048.7332336318.

Adding to 1153440223 its reverse (3220443511), we get a palindrome (4373883734).

The spelling of 1153440223 in words is "one billion, one hundred fifty-three million, four hundred forty thousand, two hundred twenty-three".