1113025 has 9 divisors (see below), whose sum is σ = 1386723.
Its totient is φ = 886200.
The previous prime is 1113019. The next prime is 1113029. The reversal of 1113025 is 5203111.
Adding to 1113025 its reverse (5203111), we get a palindrome (6316136).
It can be divided in two parts, 111 and 3025, that added together give a square (3136 = 562).
1113025 = 1242 + 1252 + ... + 1732.
The square root of 1113025 is 1055.
It is a perfect power (a square), and thus also a powerful number.
1113025 is nontrivially palindromic in base 4.
It can be written as a sum of positive squares in only one way, i.e., 400689 + 712336 = 633^2 + 844^2
It is not a de Polignac number, because 1113025 - 27 = 1112897 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1112996 and 1113014.
It is not an unprimeable number, because it can be changed into a prime (1113029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5170 + ... + 5380.
21113025 is an apocalyptic number.
1113025 is the 1055-th square number.
1113025 is the 528-th centered octagonal number.
It is an amenable number.
1113025 is a deficient number, since it is larger than the sum of its proper divisors (273698).
1113025 is an frugal number, since it uses more digits than its factorization.
1113025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 432 (or 216 counting only the distinct ones).
The product of its (nonzero) digits is 30, while the sum is 13.
The cubic root of 1113025 is about 103.6338517303.
The spelling of 1113025 in words is "one million, one hundred thirteen thousand, twenty-five".