16229233 has 4 divisors (see below), whose sum is σ = 16495348. Its totient is φ = 15963120.

The previous prime is 16229221. The next prime is 16229243. The reversal of 16229233 is 33292261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 10975969 = 2292^2 + 3313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16229233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16229243) 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, 132966 + ... + 133087.

It is an arithmetic number, because the mean of its divisors is an integer number (4123837).

Almost surely, 2^16229233 is an apocalyptic number.

It is an amenable number.

16229233 is a deficient number, since it is larger than the sum of its proper divisors (266115).

16229233 is an equidigital number, since it uses as much as digits as its factorization.

16229233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266114.

The product of its digits is 3888, while the sum is 28.

The square root of 16229233 is about 4028.5522213321. The cubic root of 16229233 is about 253.1819060799.

The spelling of 16229233 in words is "sixteen million, two hundred twenty-nine thousand, two hundred thirty-three".