1223185 has 4 divisors (see below), whose sum is σ = 1467828. Its totient is φ = 978544.

The previous prime is 1223179. The next prime is 1223197. The reversal of 1223185 is 5813221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 239121 + 984064 = 489^2 + 992^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223185 - 2³ = 1223177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122314 + ... + 122323.

It is an arithmetic number, because the mean of its divisors is an integer number (366957).

2^1223185 is an apocalyptic number.

It is an amenable number.

1223185 is a deficient number, since it is larger than the sum of its proper divisors (244643).

1223185 is an equidigital number, since it uses as much as digits as its factorization.

1223185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244642.

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

The square root of 1223185 is about 1105.9769437018. The cubic root of 1223185 is about 106.9458776567.

The spelling of 1223185 in words is "one million, two hundred twenty-three thousand, one hundred eighty-five".