1165225 has 12 divisors (see below), whose sum is σ = 1460224. Its totient is φ = 922320.

The previous prime is 1165223. The next prime is 1165273. The reversal of 1165225 is 5225611.

It is not a de Polignac number, because 1165225 - 2¹ = 1165223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1165196 and 1165205.

It is not an unprimeable number, because it can be changed into a prime (1165223) 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 11 ways as a sum of consecutive naturals, for example, 2992 + ... + 3358.

2^1165225 is an apocalyptic number.

It is an amenable number.

1165225 is a deficient number, since it is larger than the sum of its proper divisors (294999).

1165225 is a wasteful number, since it uses less digits than its factorization.

1165225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 499 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 1165225 is about 1079.4558814514. The cubic root of 1165225 is about 105.2292797776.

The spelling of 1165225 in words is "one million, one hundred sixty-five thousand, two hundred twenty-five".