544981 has 4 divisors (see below), whose sum is σ = 547264. Its totient is φ = 542700.

The previous prime is 544979. The next prime is 545023. The reversal of 544981 is 189445.

It is a happy number.

544981 is nontrivially palindromic in base 5.

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: 189445 = 5 ⋅37889.

It is a cyclic number.

It is not a de Polignac number, because 544981 - 2¹ = 544979 is a prime.

It is a super-2 number, since 2×544981² = 594008580722, which contains 22 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 (544961) 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, 735 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (136816).

2⁵⁴⁴⁹⁸¹ is an apocalyptic number.

It is an amenable number.

544981 is a deficient number, since it is larger than the sum of its proper divisors (2283).

544981 is a wasteful number, since it uses less digits than its factorization.

544981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282.

The product of its digits is 5760, while the sum is 31.

The square root of 544981 is about 738.2282844757. The cubic root of 544981 is about 81.6821424695.

The spelling of 544981 in words is "five hundred forty-four thousand, nine hundred eighty-one".