16081243 has 4 divisors (see below), whose sum is σ = 16301608. Its totient is φ = 15860880.

The previous prime is 16081237. The next prime is 16081259. The reversal of 16081243 is 34218061.

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

It is a cyclic number.

It is not a de Polignac number, because 16081243 - 2⁵ = 16081211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16081223) 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, 110073 + ... + 110218.

It is an arithmetic number, because the mean of its divisors is an integer number (4075402).

Almost surely, 2^16081243 is an apocalyptic number.

16081243 is a deficient number, since it is larger than the sum of its proper divisors (220365).

16081243 is an equidigital number, since it uses as much as digits as its factorization.

16081243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220364.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 16081243 is about 4010.1425161707. The cubic root of 16081243 is about 252.4099891566.

The spelling of 16081243 in words is "sixteen million, eighty-one thousand, two hundred forty-three".