16232305 has 4 divisors (see below), whose sum is σ = 19478772. Its totient is φ = 12985840.

The previous prime is 16232303. The next prime is 16232323. The reversal of 16232305 is 50323261.

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 4460544 + 11771761 = 2112^2 + 3431^2 .

It is not a de Polignac number, because 16232305 - 2¹ = 16232303 is a prime.

It is a super-2 number, since 2×16232305² = 526975451226050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16232303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623226 + ... + 1623235.

It is an arithmetic number, because the mean of its divisors is an integer number (4869693).

Almost surely, 2^16232305 is an apocalyptic number.

It is an amenable number.

16232305 is a deficient number, since it is larger than the sum of its proper divisors (3246467).

16232305 is an equidigital number, since it uses as much as digits as its factorization.

16232305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246466.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 16232305 is about 4028.9334817046. The cubic root of 16232305 is about 253.1978798425.

Adding to 16232305 its reverse (50323261), we get a palindrome (66555566).

The spelling of 16232305 in words is "sixteen million, two hundred thirty-two thousand, three hundred five".