444182161 has 4 divisors (see below), whose sum is σ = 449804800. Its totient is φ = 438559524.

The previous prime is 444182147. The next prime is 444182191. The reversal of 444182161 is 161281444.

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.

It is a cyclic number.

It is not a de Polignac number, because 444182161 - 2¹³ = 444173969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444182111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2811201 + ... + 2811358.

It is an arithmetic number, because the mean of its divisors is an integer number (112451200).

Almost surely, 2^444182161 is an apocalyptic number.

It is an amenable number.

444182161 is a deficient number, since it is larger than the sum of its proper divisors (5622639).

444182161 is an equidigital number, since it uses as much as digits as its factorization.

444182161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622638.

The product of its digits is 6144, while the sum is 31.

The square root of 444182161 is about 21075.6295516884. The cubic root of 444182161 is about 762.9926790315.

The spelling of 444182161 in words is "four hundred forty-four million, one hundred eighty-two thousand, one hundred sixty-one".