12269999 has 4 divisors (see below), whose sum is σ = 14022864. Its totient is φ = 10517136.

The previous prime is 12269989. The next prime is 12270047. The reversal of 12269999 is 99996221.

12269999 is digitally balanced in base 3, 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.

It is not a de Polignac number, because 12269999 - 2¹⁶ = 12204463 is a prime.

It is a Duffinian number.

12269999 is a modest number, since divided by 9999 gives 1226 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12269909) 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, 876422 + ... + 876435.

It is an arithmetic number, because the mean of its divisors is an integer number (3505716).

Almost surely, 2^12269999 is an apocalyptic number.

12269999 is a deficient number, since it is larger than the sum of its proper divisors (1752865).

12269999 is an equidigital number, since it uses as much as digits as its factorization.

12269999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752864.

The product of its digits is 157464, while the sum is 47.

The square root of 12269999 is about 3502.8558348867. The cubic root of 12269999 is about 230.6471941733.

The spelling of 12269999 in words is "twelve million, two hundred sixty-nine thousand, nine hundred ninety-nine".