1147225 has 12 divisors (see below), whose sum is σ = 1439020. Its totient is φ = 907200.

The previous prime is 1147213. The next prime is 1147229. The reversal of 1147225 is 5227411.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 173056 + 974169 = 416^2 + 987^2 .

It is not a de Polignac number, because 1147225 - 2⁵ = 1147193 is a prime.

It is a super-2 number, since 2×1147225² = 2632250401250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1147196 and 1147205.

It is not an unprimeable number, because it can be changed into a prime (1147229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2515 + ... + 2935.

2^1147225 is an apocalyptic number.

It is an amenable number.

1147225 is a deficient number, since it is larger than the sum of its proper divisors (291795).

1147225 is a wasteful number, since it uses less digits than its factorization.

1147225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 535 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 1147225 is about 1071.0858975824. The cubic root of 1147225 is about 104.6846167618.

The spelling of 1147225 in words is "one million, one hundred forty-seven thousand, two hundred twenty-five".