1226559 has 8 divisors (see below), whose sum is σ = 1670400. Its totient is φ = 800216.

The previous prime is 1226557. The next prime is 1226581. The reversal of 1226559 is 9556221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1226559 - 2¹ = 1226557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4209 + ... + 4490.

It is an arithmetic number, because the mean of its divisors is an integer number (208800).

2^1226559 is an apocalyptic number.

1226559 is a deficient number, since it is larger than the sum of its proper divisors (443841).

1226559 is an equidigital number, since it uses as much as digits as its factorization.

1226559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8749.

The product of its digits is 5400, while the sum is 30.

The square root of 1226559 is about 1107.5012415343. The cubic root of 1226559 is about 107.0441195760.

The spelling of 1226559 in words is "one million, two hundred twenty-six thousand, five hundred fifty-nine".