16223249 has 8 divisors (see below), whose sum is σ = 18993408. Its totient is φ = 13566240.

The previous prime is 16223239. The next prime is 16223293. The reversal of 16223249 is 94232261.

16223249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16223249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16223239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27977 + ... + 28550.

It is an arithmetic number, because the mean of its divisors is an integer number (2374176).

Almost surely, 2^16223249 is an apocalyptic number.

It is an amenable number.

16223249 is a deficient number, since it is larger than the sum of its proper divisors (2770159).

16223249 is an equidigital number, since it uses as much as digits as its factorization.

16223249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56575.

The product of its digits is 5184, while the sum is 29.

The square root of 16223249 is about 4027.8094542816. The cubic root of 16223249 is about 253.1507847330.

The spelling of 16223249 in words is "sixteen million, two hundred twenty-three thousand, two hundred forty-nine".