16540233 has 8 divisors (see below), whose sum is σ = 22075296. Its totient is φ = 11016000.

The previous prime is 16540229. The next prime is 16540253. The reversal of 16540233 is 33204561.

It is a happy number.

16540233 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16540233 - 2² = 16540229 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16540213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2058 + ... + 6108.

It is an arithmetic number, because the mean of its divisors is an integer number (2759412).

Almost surely, 2^16540233 is an apocalyptic number.

It is an amenable number.

16540233 is a deficient number, since it is larger than the sum of its proper divisors (5535063).

16540233 is a wasteful number, since it uses less digits than its factorization.

16540233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 16540233 is about 4066.9685270481. The cubic root of 16540233 is about 254.7889218280.

Adding to 16540233 its reverse (33204561), we get a palindrome (49744794).

The spelling of 16540233 in words is "sixteen million, five hundred forty thousand, two hundred thirty-three".