1226226853 has 4 divisors (see below), whose sum is σ = 1279541088. Its totient is φ = 1172912620.

The previous prime is 1226226821. The next prime is 1226226887. The reversal of 1226226853 is 3586226221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3586226221 = 37 ⋅96925033.

It is a cyclic number.

It is not a de Polignac number, because 1226226853 - 2⁵ = 1226226821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226226803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26657083 + ... + 26657128.

It is an arithmetic number, because the mean of its divisors is an integer number (319885272).

Almost surely, 2^1226226853 is an apocalyptic number.

It is an amenable number.

1226226853 is a deficient number, since it is larger than the sum of its proper divisors (53314235).

1226226853 is an equidigital number, since it uses as much as digits as its factorization.

1226226853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53314234.

The product of its digits is 69120, while the sum is 37.

The square root of 1226226853 is about 35017.5220853789. The cubic root of 1226226853 is about 1070.3445633841.

The spelling of 1226226853 in words is "one billion, two hundred twenty-six million, two hundred twenty-six thousand, eight hundred fifty-three".