1153365444 has 72 divisors (see below), whose sum is σ = 3634857408. Its totient is φ = 299574720.

The previous prime is 1153365439. The next prime is 1153365449. The reversal of 1153365444 is 4445633511.

1153365444 is a `hidden beast` number, since 1 + 153 + 3 + 65 + 444 = 666.

It is an interprime number because it is at equal distance from previous prime (1153365439) and next prime (1153365449).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1153365399 and 1153365408.

It is not an unprimeable number, because it can be changed into a prime (1153365449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205267 + ... + 210810.

Almost surely, 2^1153365444 is an apocalyptic number.

1153365444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1153365444 is an abundant number, since it is smaller than the sum of its proper divisors (2481491964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1153365444 is a wasteful number, since it uses less digits than its factorization.

1153365444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416105 (or 416100 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 1153365444 is about 33961.2344298614. The cubic root of 1153365444 is about 1048.7105695712.

Adding to 1153365444 its reverse (4445633511), we get a palindrome (5598998955).

The spelling of 1153365444 in words is "one billion, one hundred fifty-three million, three hundred sixty-five thousand, four hundred forty-four".