12919229 has 4 divisors (see below), whose sum is σ = 12926460. Its totient is φ = 12912000.

The previous prime is 12919211. The next prime is 12919241. The reversal of 12919229 is 92291921.

12919229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1876900 + 11042329 = 1370^2 + 3323^2 .

It is a cyclic number.

It is not a de Polignac number, because 12919229 - 2¹⁶ = 12853693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919429) 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, 1229 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (3231615).

Almost surely, 2^12919229 is an apocalyptic number.

It is an amenable number.

12919229 is a deficient number, since it is larger than the sum of its proper divisors (7231).

12919229 is an equidigital number, since it uses as much as digits as its factorization.

12919229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230.

The product of its digits is 5832, while the sum is 35.

The square root of 12919229 is about 3594.3329005533. The cubic root of 12919229 is about 234.6454832573.

The spelling of 12919229 in words is "twelve million, nine hundred nineteen thousand, two hundred twenty-nine".