1305226 has 16 divisors (see below), whose sum is σ = 2233224. Its totient is φ = 566784.

The previous prime is 1305169. The next prime is 1305229. The reversal of 1305226 is 6225031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1212201 + 93025 = 1101^2 + 305^2 .

It is a super-2 number, since 2×1305226² = 3407229822152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1305229) 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 7 ways as a sum of consecutive naturals, for example, 1035 + ... + 1918.

2^1305226 is an apocalyptic number.

1305226 is a deficient number, since it is larger than the sum of its proper divisors (927998).

1305226 is a wasteful number, since it uses less digits than its factorization.

1305226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985.

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

The square root of 1305226 is about 1142.4648791101. The cubic root of 1305226 is about 109.2853394184.

It can be divided in two parts, 130 and 5226, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 1305226 in words is "one million, three hundred five thousand, two hundred twenty-six".