1226859 has 4 divisors (see below), whose sum is σ = 1635816. Its totient is φ = 817904.

The previous prime is 1226857. The next prime is 1226861. The reversal of 1226859 is 9586221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9586221 = 3 ⋅3195407.

It is an interprime number because it is at equal distance from previous prime (1226857) and next prime (1226861).

It is a cyclic number.

It is not a de Polignac number, because 1226859 - 2¹ = 1226857 is a prime.

It is a super-3 number, since 3×1226859³ = 5539941952236473337, which contains 333 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1226851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204474 + ... + 204479.

It is an arithmetic number, because the mean of its divisors is an integer number (408954).

2^1226859 is an apocalyptic number.

1226859 is a deficient number, since it is larger than the sum of its proper divisors (408957).

1226859 is an equidigital number, since it uses as much as digits as its factorization.

1226859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408956.

The product of its digits is 8640, while the sum is 33.

The square root of 1226859 is about 1107.6366732824. The cubic root of 1226859 is about 107.0528460533.

The spelling of 1226859 in words is "one million, two hundred twenty-six thousand, eight hundred fifty-nine".