1226963629 has 2 divisors, whose sum is σ = 1226963630. Its totient is φ = 1226963628.

The previous prime is 1226963561. The next prime is 1226963641. The reversal of 1226963629 is 9263696221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1226890729 + 72900 = 35027^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226963629 - 2²¹ = 1224866477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226963659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613481814 + 613481815.

It is an arithmetic number, because the mean of its divisors is an integer number (613481815).

Almost surely, 2^1226963629 is an apocalyptic number.

It is an amenable number.

1226963629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226963629 is an equidigital number, since it uses as much as digits as its factorization.

1226963629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 46.

The square root of 1226963629 is about 35028.0406103453. The cubic root of 1226963629 is about 1070.5588919408.

The spelling of 1226963629 in words is "one billion, two hundred twenty-six million, nine hundred sixty-three thousand, six hundred twenty-nine".