1153325444 has 6 divisors (see below), whose sum is σ = 2018319534. Its totient is φ = 576662720.

The previous prime is 1153325443. The next prime is 1153325497. The reversal of 1153325444 is 4445233511.

It can be written as a sum of positive squares in only one way, i.e., 1151787844 + 1537600 = 33938^2 + 1240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1153325444.

It is not an unprimeable number, because it can be changed into a prime (1153325443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144165677 + ... + 144165684.

It is an arithmetic number, because the mean of its divisors is an integer number (336386589).

Almost surely, 2^1153325444 is an apocalyptic number.

It is an amenable number.

1153325444 is a deficient number, since it is larger than the sum of its proper divisors (864994090).

1153325444 is a wasteful number, since it uses less digits than its factorization.

1153325444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288331365 (or 288331363 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 1153325444 is about 33960.6455180110. The cubic root of 1153325444 is about 1048.6984459470.

Adding to 1153325444 its reverse (4445233511), we get a palindrome (5598558955).

The spelling of 1153325444 in words is "one billion, one hundred fifty-three million, three hundred twenty-five thousand, four hundred forty-four".