1153321225 has 48 divisors (see below), whose sum is σ = 1743638400. Its totient is φ = 738708480.

The previous prime is 1153321207. The next prime is 1153321243. The reversal of 1153321225 is 5221233511.

It is an interprime number because it is at equal distance from previous prime (1153321207) and next prime (1153321243).

It is not a de Polignac number, because 1153321225 - 2⁹ = 1153320713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1153321225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 412131 + ... + 414919.

It is an arithmetic number, because the mean of its divisors is an integer number (36325800).

Almost surely, 2^1153321225 is an apocalyptic number.

It is an amenable number.

1153321225 is a deficient number, since it is larger than the sum of its proper divisors (590317175).

1153321225 is a wasteful number, since it uses less digits than its factorization.

1153321225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962 (or 2957 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 1153321225 is about 33960.5834019382. The cubic root of 1153321225 is about 1048.6971671914.

Adding to 1153321225 its reverse (5221233511), we get a palindrome (6374554736).

The spelling of 1153321225 in words is "one billion, one hundred fifty-three million, three hundred twenty-one thousand, two hundred twenty-five".