444147161 has 8 divisors (see below), whose sum is σ = 452750784. Its totient is φ = 435586320.

The previous prime is 444147157. The next prime is 444147167. The reversal of 444147161 is 161741444.

444147161 = T₃₅₃ + T₃₅₄ + ... + T₁₃₉₃.

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

It is a cyclic number.

It is not a de Polignac number, because 444147161 - 2² = 444147157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444147167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10676 + ... + 31658.

It is an arithmetic number, because the mean of its divisors is an integer number (56593848).

Almost surely, 2^444147161 is an apocalyptic number.

It is an amenable number.

444147161 is a deficient number, since it is larger than the sum of its proper divisors (8603623).

444147161 is a wasteful number, since it uses less digits than its factorization.

444147161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21391.

The product of its digits is 10752, while the sum is 32.

The square root of 444147161 is about 21074.7991924004. The cubic root of 444147161 is about 762.9726381207.

The spelling of 444147161 in words is "four hundred forty-four million, one hundred forty-seven thousand, one hundred sixty-one".