13229873 has 4 divisors (see below), whose sum is σ = 13237488. Its totient is φ = 13222260.

The previous prime is 13229861. The next prime is 13229897. The reversal of 13229873 is 37892231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13229873 - 2⁴ = 13229857 is a prime.

It is a super-2 number, since 2×13229873² = 350059079192258, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13229803) 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, 218 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (3309372).

Almost surely, 2^13229873 is an apocalyptic number.

It is an amenable number.

13229873 is a deficient number, since it is larger than the sum of its proper divisors (7615).

13229873 is an equidigital number, since it uses as much as digits as its factorization.

13229873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7614.

The product of its digits is 18144, while the sum is 35.

The square root of 13229873 is about 3637.2892378803. The cubic root of 13229873 is about 236.5112980998.

The spelling of 13229873 in words is "thirteen million, two hundred twenty-nine thousand, eight hundred seventy-three".