548645 has 8 divisors (see below), whose sum is σ = 662904. Its totient is φ = 435904.

The previous prime is 548629. The next prime is 548657. The reversal of 548645 is 546845.

548645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 83521 + 465124 = 289^2 + 682^2 .

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 548645 - 2⁴ = 548629 is a prime.

It is a super-2 number, since 2×548645² = 602022672050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707 + ... + 1263.

It is an arithmetic number, because the mean of its divisors is an integer number (82863).

2⁵⁴⁸⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

548645 is a deficient number, since it is larger than the sum of its proper divisors (114259).

548645 is a wasteful number, since it uses less digits than its factorization.

548645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

The product of its digits is 19200, while the sum is 32.

The square root of 548645 is about 740.7057445437. The cubic root of 548645 is about 81.8647880743.

The spelling of 548645 in words is "five hundred forty-eight thousand, six hundred forty-five".