16144257 has 8 divisors (see below), whose sum is σ = 21637984. Its totient is φ = 10706688.

The previous prime is 16144241. The next prime is 16144259. The reversal of 16144257 is 75244161.

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

It is not a de Polignac number, because 16144257 - 2⁴ = 16144241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16144259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13363 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (2704748).

Almost surely, 2^16144257 is an apocalyptic number.

It is an amenable number.

16144257 is a deficient number, since it is larger than the sum of its proper divisors (5493727).

16144257 is a wasteful number, since it uses less digits than its factorization.

16144257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28079.

The product of its digits is 6720, while the sum is 30.

The square root of 16144257 is about 4017.9916625100. The cubic root of 16144257 is about 252.7392471463.

The spelling of 16144257 in words is "sixteen million, one hundred forty-four thousand, two hundred fifty-seven".