1229024999 has 2 divisors, whose sum is σ = 1229025000. Its totient is φ = 1229024998.

The previous prime is 1229024983. The next prime is 1229025001. The reversal of 1229024999 is 9994209221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1229024999 - 2⁴ = 1229024983 is a prime.

Together with 1229025001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229024969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614512499 + 614512500.

It is an arithmetic number, because the mean of its divisors is an integer number (614512500).

Almost surely, 2^1229024999 is an apocalyptic number.

1229024999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229024999 is an equidigital number, since it uses as much as digits as its factorization.

1229024999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 1229024999 is about 35057.4528310315. The cubic root of 1229024999 is about 1071.1580901628.

The spelling of 1229024999 in words is "one billion, two hundred twenty-nine million, twenty-four thousand, nine hundred ninety-nine".