1251226 has 12 divisors (see below), whose sum is σ = 1981962. Its totient is φ = 592344.

The previous prime is 1251179. The next prime is 1251227. The reversal of 1251226 is 6221521.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 159201 = 1045^2 + 399^2 .

It is a super-3 number, since 3×1251226³ = 5876632540133313528, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1251227) 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 5 ways as a sum of consecutive naturals, for example, 145 + ... + 1588.

2^1251226 is an apocalyptic number.

1251226 is a deficient number, since it is larger than the sum of its proper divisors (730736).

1251226 is a wasteful number, since it uses less digits than its factorization.

1251226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1754 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 1251226 is about 1118.5821382447. The cubic root of 1251226 is about 107.7569408197.

Adding to 1251226 its reverse (6221521), we get a palindrome (7472747).

The spelling of 1251226 in words is "one million, two hundred fifty-one thousand, two hundred twenty-six".