16254138 has 8 divisors (see below), whose sum is σ = 32508288. Its totient is φ = 5418044.

The previous prime is 16254131. The next prime is 16254143. The reversal of 16254138 is 83145261.

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

16254138 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16254131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354506 + ... + 1354517.

It is an arithmetic number, because the mean of its divisors is an integer number (4063536).

Almost surely, 2^16254138 is an apocalyptic number.

16254138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16254138 is a wasteful number, since it uses less digits than its factorization.

16254138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709028.

The product of its digits is 5760, while the sum is 30.

The square root of 16254138 is about 4031.6420972105. The cubic root of 16254138 is about 253.3113488925.

Adding to 16254138 its reverse (83145261), we get a palindrome (99399399).

The spelling of 16254138 in words is "sixteen million, two hundred fifty-four thousand, one hundred thirty-eight".