1226351343 has 16 divisors (see below), whose sum is σ = 1869223680. Its totient is φ = 700585536.

The previous prime is 1226351339. The next prime is 1226351377. The reversal of 1226351343 is 3431536221.

It is not a de Polignac number, because 1226351343 - 2² = 1226351339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1226351343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226351323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128296 + ... + 137522.

It is an arithmetic number, because the mean of its divisors is an integer number (116826480).

Almost surely, 2^1226351343 is an apocalyptic number.

1226351343 is a deficient number, since it is larger than the sum of its proper divisors (642872337).

1226351343 is an equidigital number, since it uses as much as digits as its factorization.

1226351343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15566.

The product of its digits is 12960, while the sum is 30.

The square root of 1226351343 is about 35019.2995789465. The cubic root of 1226351343 is about 1070.3807836222.

Adding to 1226351343 its reverse (3431536221), we get a palindrome (4657887564).

The spelling of 1226351343 in words is "one billion, two hundred twenty-six million, three hundred fifty-one thousand, three hundred forty-three".