1555226 has 8 divisors (see below), whose sum is σ = 2455680. Its totient is φ = 736668.

The previous prime is 1555223. The next prime is 1555231. The reversal of 1555226 is 6225551.

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

It is a super-2 number, since 2×1555226² = 4837455822152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1555195 and 1555204.

It is not an unprimeable number, because it can be changed into a prime (1555223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20426 + ... + 20501.

It is an arithmetic number, because the mean of its divisors is an integer number (306960).

2^1555226 is an apocalyptic number.

1555226 is a deficient number, since it is larger than the sum of its proper divisors (900454).

1555226 is a wasteful number, since it uses less digits than its factorization.

1555226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40948.

The product of its digits is 3000, while the sum is 26.

The square root of 1555226 is about 1247.0870057859. The cubic root of 1555226 is about 115.8593717953.

The spelling of 1555226 in words is "one million, five hundred fifty-five thousand, two hundred twenty-six".