1177225 has 27 divisors (see below), whose sum is σ = 1754631.
Its totient is φ = 781200.
The previous prime is 1177223. The next prime is 1177237. The reversal of 1177225 is 5227711.
Multipling 1177225 by its sum of digits (25), we get a square (29430625 = 54252).
1177225 divided by its sum of digits (25) gives a square (47089 = 2172).
It is a happy number.
The square root of 1177225 is 1085.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 423801 + 753424 = 651^2 + 868^2
It is not a de Polignac number, because 1177225 - 21 = 1177223 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 1177225.
It is not an unprimeable number, because it can be changed into a prime (1177223) 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 26 ways as a sum of consecutive naturals, for example, 37960 + ... + 37990.
21177225 is an apocalyptic number.
1177225 is the 1085-th square number.
1177225 is the 543-rd centered octagonal number.
It is an amenable number.
1177225 is a deficient number, since it is larger than the sum of its proper divisors (577406).
1177225 is an equidigital number, since it uses as much as digits as its factorization.
1177225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 86 (or 43 counting only the distinct ones).
The product of its digits is 980, while the sum is 25.
The cubic root of 1177225 is about 105.5892792625.
The spelling of 1177225 in words is "one million, one hundred seventy-seven thousand, two hundred twenty-five".