16323243 has 4 divisors (see below), whose sum is σ = 21764328. Its totient is φ = 10882160.

The previous prime is 16323239. The next prime is 16323301. The reversal of 16323243 is 34232361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34232361 = 3 ⋅11410787.

It is a cyclic number.

It is not a de Polignac number, because 16323243 - 2² = 16323239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16327243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2720538 + ... + 2720543.

It is an arithmetic number, because the mean of its divisors is an integer number (5441082).

Almost surely, 2^16323243 is an apocalyptic number.

16323243 is a deficient number, since it is larger than the sum of its proper divisors (5441085).

16323243 is an equidigital number, since it uses as much as digits as its factorization.

16323243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441084.

The product of its digits is 2592, while the sum is 24.

The square root of 16323243 is about 4040.2033364671. The cubic root of 16323243 is about 253.6698285073.

The spelling of 16323243 in words is "sixteen million, three hundred twenty-three thousand, two hundred forty-three".