1245226 has 4 divisors (see below), whose sum is σ = 1867842. Its totient is φ = 622612.

The previous prime is 1245217. The next prime is 1245227. The reversal of 1245226 is 6225421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6225421 = 367 ⋅16963.

It can be written as a sum of positive squares in only one way, i.e., 1104601 + 140625 = 1051^2 + 375^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 2¹⁷ + 4⁸ + 5 + 2¹⁹ + 2¹⁹ + 6² .

It is a junction number, because it is equal to n+sod(n) for n = 1245197 and 1245206.

It is not an unprimeable number, because it can be changed into a prime (1245227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311305 + ... + 311308.

2^1245226 is an apocalyptic number.

1245226 is a deficient number, since it is larger than the sum of its proper divisors (622616).

1245226 is an equidigital number, since it uses as much as digits as its factorization.

1245226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622615.

The product of its digits is 960, while the sum is 22.

The square root of 1245226 is about 1115.8969486471. The cubic root of 1245226 is about 107.5844225963.

The spelling of 1245226 in words is "one million, two hundred forty-five thousand, two hundred twenty-six".