1226305 has 4 divisors (see below), whose sum is σ = 1471572. Its totient is φ = 981040.

The previous prime is 1226299. The next prime is 1226311. The reversal of 1226305 is 5036221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5036221 = 61 ⋅82561.

It is an interprime number because it is at equal distance from previous prime (1226299) and next prime (1226311).

It can be written as a sum of positive squares in 2 ways, for example, as 908209 + 318096 = 953^2 + 564^2 .

It is not a de Polignac number, because 1226305 - 2³ = 1226297 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, 122626 + ... + 122635.

It is an arithmetic number, because the mean of its divisors is an integer number (367893).

2^1226305 is an apocalyptic number.

It is an amenable number.

1226305 is a deficient number, since it is larger than the sum of its proper divisors (245267).

1226305 is an equidigital number, since it uses as much as digits as its factorization.

1226305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245266.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1226305 is about 1107.3865630393. The cubic root of 1226305 is about 107.0367300460.

The spelling of 1226305 in words is "one million, two hundred twenty-six thousand, three hundred five".