544161 has 4 divisors (see below), whose sum is σ = 725552. Its totient is φ = 362772.

The previous prime is 544139. The next prime is 544171. The reversal of 544161 is 161445.

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 not a de Polignac number, because 544161 - 2⁵ = 544129 is a prime.

It is a super-2 number, since 2×544161² = 592222387842, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

544161 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 544161.

It is not an unprimeable number, because it can be changed into a prime (544171) 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, 90691 + ... + 90696.

It is an arithmetic number, because the mean of its divisors is an integer number (181388).

2⁵⁴⁴¹⁶¹ is an apocalyptic number.

It is an amenable number.

544161 is a deficient number, since it is larger than the sum of its proper divisors (181391).

544161 is a wasteful number, since it uses less digits than its factorization.

544161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181390.

The product of its digits is 480, while the sum is 21.

The square root of 544161 is about 737.6726916458. The cubic root of 544161 is about 81.6411545096.

The spelling of 544161 in words is "five hundred forty-four thousand, one hundred sixty-one".