16016243 has 4 divisors (see below), whose sum is σ = 16532928. Its totient is φ = 15499560.

The previous prime is 16016239. The next prime is 16016249. The reversal of 16016243 is 34261061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34261061 = 1471 ⋅23291.

It is a cyclic number.

It is not a de Polignac number, because 16016243 - 2² = 16016239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16016249) 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, 258296 + ... + 258357.

It is an arithmetic number, because the mean of its divisors is an integer number (4133232).

Almost surely, 2^16016243 is an apocalyptic number.

16016243 is a deficient number, since it is larger than the sum of its proper divisors (516685).

16016243 is an equidigital number, since it uses as much as digits as its factorization.

16016243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516684.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 16016243 is about 4002.0298599586. The cubic root of 16016243 is about 252.0694515468.

The spelling of 16016243 in words is "sixteen million, sixteen thousand, two hundred forty-three".