16345243 has 4 divisors (see below), whose sum is σ = 16370928. Its totient is φ = 16319560.

The previous prime is 16345229. The next prime is 16345261. The reversal of 16345243 is 34254361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34254361 = 223 ⋅153607.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16345243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16345283) 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, 11863 + ... + 13168.

It is an arithmetic number, because the mean of its divisors is an integer number (4092732).

Almost surely, 2^16345243 is an apocalyptic number.

16345243 is a deficient number, since it is larger than the sum of its proper divisors (25685).

16345243 is an equidigital number, since it uses as much as digits as its factorization.

16345243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25684.

The product of its digits is 8640, while the sum is 28.

The square root of 16345243 is about 4042.9250549571. The cubic root of 16345243 is about 253.7837403265.

The spelling of 16345243 in words is "sixteen million, three hundred forty-five thousand, two hundred forty-three".