1229914369 has 2 divisors, whose sum is σ = 1229914370. Its totient is φ = 1229914368.

The previous prime is 1229914333. The next prime is 1229914393. The reversal of 1229914369 is 9634199221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1152263025 + 77651344 = 33945^2 + 8812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229914369 - 2⁷ = 1229914241 is a prime.

It is a super-2 number, since 2×1229914369² = 3025378710145336322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1229914319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614957184 + 614957185.

It is an arithmetic number, because the mean of its divisors is an integer number (614957185).

Almost surely, 2^1229914369 is an apocalyptic number.

It is an amenable number.

1229914369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229914369 is an equidigital number, since it uses as much as digits as its factorization.

1229914369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 1229914369 is about 35070.1350011659. The cubic root of 1229914369 is about 1071.4164049979.

The spelling of 1229914369 in words is "one billion, two hundred twenty-nine million, nine hundred fourteen thousand, three hundred sixty-nine".