1556227 has 8 divisors (see below), whose sum is σ = 1628640. Its totient is φ = 1485120.

The previous prime is 1556201. The next prime is 1556251. The reversal of 1556227 is 7226551.

1556227 = T₃₁₃ + T₃₁₄ + ... + T₃₄₁.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1556227 is a prime.

1556227 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1556195 and 1556204.

It is not an unprimeable number, because it can be changed into a prime (1556267) 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 7 ways as a sum of consecutive naturals, for example, 2727 + ... + 3247.

It is an arithmetic number, because the mean of its divisors is an integer number (203580).

2^1556227 is an apocalyptic number.

1556227 is a deficient number, since it is larger than the sum of its proper divisors (72413).

1556227 is a wasteful number, since it uses less digits than its factorization.

1556227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its digits is 4200, while the sum is 28.

The square root of 1556227 is about 1247.4882764980. The cubic root of 1556227 is about 115.8842235656.

The spelling of 1556227 in words is "one million, five hundred fifty-six thousand, two hundred twenty-seven".