1224625 has 16 divisors (see below), whose sum is σ = 1559376. Its totient is φ = 960000.

The previous prime is 1224599. The next prime is 1224637. The reversal of 1224625 is 5264221.

It can be written as a sum of positive squares in 8 ways, for example, as 134689 + 1089936 = 367^2 + 1044^2 .

It is not a de Polignac number, because 1224625 - 2¹³ = 1216433 is a prime.

It is a Duffinian number.

1224625 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1224596 and 1224605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12075 + ... + 12175.

It is an arithmetic number, because the mean of its divisors is an integer number (97461).

2^1224625 is an apocalyptic number.

It is an amenable number.

1224625 is a deficient number, since it is larger than the sum of its proper divisors (334751).

1224625 is an equidigital number, since it uses as much as digits as its factorization.

1224625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 203 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 1224625 is about 1106.6277603603. The cubic root of 1224625 is about 106.9878287026.

Adding to 1224625 its reverse (5264221), we get a palindrome (6488846).

It can be divided in two parts, 1224 and 625, that added together give a square (1849 = 43²).

The spelling of 1224625 in words is "one million, two hundred twenty-four thousand, six hundred twenty-five".