16144285 has 4 divisors (see below), whose sum is σ = 19373148. Its totient is φ = 12915424.

The previous prime is 16144279. The next prime is 16144291. The reversal of 16144285 is 58244161.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16144279) and next prime (16144291).

It can be written as a sum of positive squares in 2 ways, for example, as 10484644 + 5659641 = 3238^2 + 2379^2 .

It is a cyclic number.

It is not a de Polignac number, because 16144285 - 2⁹ = 16143773 is a prime.

It is a super-2 number, since 2×16144285² = 521275876322450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614424 + ... + 1614433.

It is an arithmetic number, because the mean of its divisors is an integer number (4843287).

Almost surely, 2^16144285 is an apocalyptic number.

It is an amenable number.

16144285 is a deficient number, since it is larger than the sum of its proper divisors (3228863).

16144285 is an equidigital number, since it uses as much as digits as its factorization.

16144285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228862.

The product of its digits is 7680, while the sum is 31.

The square root of 16144285 is about 4017.9951468363. The cubic root of 16144285 is about 252.7393932601.

The spelling of 16144285 in words is "sixteen million, one hundred forty-four thousand, two hundred eighty-five".