1005229999 has 4 divisors (see below), whose sum is σ = 1019388240. Its totient is φ = 991071760.

The previous prime is 1005229997. The next prime is 1005230003. The reversal of 1005229999 is 9999225001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1005229999 - 2¹ = 1005229997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005229997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7079014 + ... + 7079155.

It is an arithmetic number, because the mean of its divisors is an integer number (254847060).

Almost surely, 2^1005229999 is an apocalyptic number.

1005229999 is a deficient number, since it is larger than the sum of its proper divisors (14158241).

1005229999 is an equidigital number, since it uses as much as digits as its factorization.

1005229999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14158240.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 1005229999 is about 31705.3623067140. The cubic root of 1005229999 is about 1001.7403025900.

The spelling of 1005229999 in words is "one billion, five million, two hundred twenty-nine thousand, nine hundred ninety-nine".