1103236225 has 81 divisors (see below), whose sum is σ = 1747119483. Its totient is φ = 688746240.

The previous prime is 1103236219. The next prime is 1103236229. The reversal of 1103236225 is 5226323011.

The square root of 1103236225 is 33215.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 993573441 + 109662784 = 31521^2 + 10472^2 .

It is not a de Polignac number, because 1103236225 - 2¹¹ = 1103234177 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1103236225.

It is not an unprimeable number, because it can be changed into a prime (1103236229) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 15112789 + ... + 15112861.

Almost surely, 2^1103236225 is an apocalyptic number.

1103236225 is the 33215-th square number.

1103236225 is the 16608-th centered octagonal number.

It is an amenable number.

1103236225 is a deficient number, since it is larger than the sum of its proper divisors (643883258).

1103236225 is an equidigital number, since it uses as much as digits as its factorization.

1103236225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The cubic root of 1103236225 is about 1033.2914548296.

Multiplying 1103236225 by its sum of digits (25), we get a square (27580905625 = 166075²).

1103236225 divided by its sum of digits (25) gives a square (44129449 = 6643²).

Adding to 1103236225 its reverse (5226323011), we get a palindrome (6329559236).

The spelling of 1103236225 in words is "one billion, one hundred three million, two hundred thirty-six thousand, two hundred twenty-five".