1225318 has 8 divisors (see below), whose sum is σ = 1864080. Its totient is φ = 603960.

The previous prime is 1225303. The next prime is 1225319. The reversal of 1225318 is 8135221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1225318² = 3002808402248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4173 + ... + 4456.

It is an arithmetic number, because the mean of its divisors is an integer number (233010).

2^1225318 is an apocalyptic number.

1225318 is a deficient number, since it is larger than the sum of its proper divisors (638762).

1225318 is an equidigital number, since it uses as much as digits as its factorization.

1225318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8702.

The product of its digits is 480, while the sum is 22.

The square root of 1225318 is about 1106.9408294936. The cubic root of 1225318 is about 107.0080059226.

Subtracting 1225318 from its reverse (8135221), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1225318 in words is "one million, two hundred twenty-five thousand, three hundred eighteen".