16318241 has 4 divisors (see below), whose sum is σ = 16350084. Its totient is φ = 16286400.

The previous prime is 16318229. The next prime is 16318261. The reversal of 16318241 is 14281361.

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 6739216 + 9579025 = 2596^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 16318241 - 2¹⁸ = 16056097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16318241.

It is not an unprimeable number, because it can be changed into a prime (16318261) 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, 15140 + ... + 16181.

It is an arithmetic number, because the mean of its divisors is an integer number (4087521).

Almost surely, 2^16318241 is an apocalyptic number.

It is an amenable number.

16318241 is a deficient number, since it is larger than the sum of its proper divisors (31843).

16318241 is an equidigital number, since it uses as much as digits as its factorization.

16318241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31842.

The product of its digits is 1152, while the sum is 26.

The square root of 16318241 is about 4039.5842607872. The cubic root of 16318241 is about 253.6439148227.

The spelling of 16318241 in words is "sixteen million, three hundred eighteen thousand, two hundred forty-one".