1226843413 has 2 divisors, whose sum is σ = 1226843414. Its totient is φ = 1226843412.

The previous prime is 1226843411. The next prime is 1226843419. The reversal of 1226843413 is 3143486221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 893890404 + 332953009 = 29898^2 + 18247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226843413 - 2¹ = 1226843411 is a prime.

It is a super-3 number, since 3×1226843413³ (a number of 28 digits) contains 333 as substring.

Together with 1226843411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226843411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613421706 + 613421707.

It is an arithmetic number, because the mean of its divisors is an integer number (613421707).

Almost surely, 2^1226843413 is an apocalyptic number.

It is an amenable number.

1226843413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226843413 is an equidigital number, since it uses as much as digits as its factorization.

1226843413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 34.

The square root of 1226843413 is about 35026.3245716704. The cubic root of 1226843413 is about 1070.5239268970.

The spelling of 1226843413 in words is "one billion, two hundred twenty-six million, eight hundred forty-three thousand, four hundred thirteen".