1172225 has 6 divisors (see below), whose sum is σ = 1453590. Its totient is φ = 937760.

The previous prime is 1172207. The next prime is 1172233. The reversal of 1172225 is 5222711.

It can be written as a sum of positive squares in 3 ways, for example, as 71824 + 1100401 = 268^2 + 1049^2 .

It is not a de Polignac number, because 1172225 - 2⁸ = 1171969 is a prime.

It is a super-2 number, since 2×1172225² = 2748222901250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1172197 and 1172206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23420 + ... + 23469.

It is an arithmetic number, because the mean of its divisors is an integer number (242265).

2^1172225 is an apocalyptic number.

It is an amenable number.

1172225 is a deficient number, since it is larger than the sum of its proper divisors (281365).

1172225 is an equidigital number, since it uses as much as digits as its factorization.

1172225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46899 (or 46894 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 1172225 is about 1082.6934007373. The cubic root of 1172225 is about 105.4395781689.

Adding to 1172225 its reverse (5222711), we get a palindrome (6394936).

The spelling of 1172225 in words is "one million, one hundred seventy-two thousand, two hundred twenty-five".