16444141 has 4 divisors (see below), whose sum is σ = 18793312. Its totient is φ = 14094972.

The previous prime is 16444133. The next prime is 16444159. The reversal of 16444141 is 14144461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14144461 = 1279 ⋅11059.

It is a cyclic number.

It is not a de Polignac number, because 16444141 - 2³ = 16444133 is a prime.

It is a super-3 number, since 3×16444141³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16444111) 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, 1174575 + ... + 1174588.

It is an arithmetic number, because the mean of its divisors is an integer number (4698328).

Almost surely, 2^16444141 is an apocalyptic number.

It is an amenable number.

16444141 is a deficient number, since it is larger than the sum of its proper divisors (2349171).

16444141 is an equidigital number, since it uses as much as digits as its factorization.

16444141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349170.

The product of its digits is 1536, while the sum is 25.

The square root of 16444141 is about 4055.1376055567. The cubic root of 16444141 is about 254.2945567019.

The spelling of 16444141 in words is "sixteen million, four hundred forty-four thousand, one hundred forty-one".