12929019 has 4 divisors (see below), whose sum is σ = 17238696. Its totient is φ = 8619344.

The previous prime is 12929017. The next prime is 12929023. The reversal of 12929019 is 91092921.

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 12929019 - 2¹ = 12929017 is a prime.

It is a super-2 number, since 2×12929019² = 334319064604722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12929017) 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, 2154834 + ... + 2154839.

It is an arithmetic number, because the mean of its divisors is an integer number (4309674).

Almost surely, 2^12929019 is an apocalyptic number.

12929019 is a deficient number, since it is larger than the sum of its proper divisors (4309677).

12929019 is an equidigital number, since it uses as much as digits as its factorization.

12929019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309676.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 12929019 is about 3595.6945087146. The cubic root of 12929019 is about 234.7047385805.

The spelling of 12929019 in words is "twelve million, nine hundred twenty-nine thousand, nineteen".