1229352819 has 8 divisors (see below), whose sum is σ = 1641649872. Its totient is φ = 818312160.

The previous prime is 1229352799. The next prime is 1229352823. The reversal of 1229352819 is 9182539221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1229352819 - 2⁸ = 1229352563 is a prime.

It is a super-2 number, since 2×1229352819² = 3022616707166493522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1229352889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311812 + ... + 315729.

It is an arithmetic number, because the mean of its divisors is an integer number (205206234).

Almost surely, 2^1229352819 is an apocalyptic number.

1229352819 is a deficient number, since it is larger than the sum of its proper divisors (412297053).

1229352819 is an equidigital number, since it uses as much as digits as its factorization.

1229352819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628197.

The product of its digits is 77760, while the sum is 42.

The square root of 1229352819 is about 35062.1279873313. The cubic root of 1229352819 is about 1071.2533189903.

The spelling of 1229352819 in words is "one billion, two hundred twenty-nine million, three hundred fifty-two thousand, eight hundred nineteen".