630545 has 8 divisors (see below), whose sum is σ = 789696. Its totient is φ = 482416.

The previous prime is 630529. The next prime is 630559. The reversal of 630545 is 545036.

630545 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 a cyclic number.

It is not a de Polignac number, because 630545 - 2⁴ = 630529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630545.

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, 2627 + ... + 2856.

It is an arithmetic number, because the mean of its divisors is an integer number (98712).

2⁶³⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

630545 is a deficient number, since it is larger than the sum of its proper divisors (159151).

630545 is a wasteful number, since it uses less digits than its factorization.

630545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511.

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

The square root of 630545 is about 794.0686368319. The cubic root of 630545 is about 85.7509016840.

The spelling of 630545 in words is "six hundred thirty thousand, five hundred forty-five".