545630 has 8 divisors (see below), whose sum is σ = 982152. Its totient is φ = 218248.

The previous prime is 545621. The next prime is 545641. The reversal of 545630 is 36545.

545630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 545596 and 545605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27272 + ... + 27291.

It is an arithmetic number, because the mean of its divisors is an integer number (122769).

2⁵⁴⁵⁶³⁰ is an apocalyptic number.

545630 is a deficient number, since it is larger than the sum of its proper divisors (436522).

545630 is a wasteful number, since it uses less digits than its factorization.

545630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54570.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 545630 is about 738.6677196142. The cubic root of 545630 is about 81.7145538020.

It can be divided in two parts, 5 and 45630, that multiplied together give a triangular number (228150 = T₆₇₅).

The spelling of 545630 in words is "five hundred forty-five thousand, six hundred thirty".