630123 has 16 divisors (see below), whose sum is σ = 919296. Its totient is φ = 381600.

The previous prime is 630107. The next prime is 630127. The reversal of 630123 is 321036.

It is not a de Polignac number, because 630123 - 2⁴ = 630107 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (630127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4098 + ... + 4248.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2⁶³⁰¹²³ is an apocalyptic number.

630123 is a deficient number, since it is larger than the sum of its proper divisors (289173).

630123 is a wasteful number, since it uses less digits than its factorization.

630123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 630123 is about 793.8028722548. The cubic root of 630123 is about 85.7317674660.

Adding to 630123 its reverse (321036), we get a palindrome (951159).

The spelling of 630123 in words is "six hundred thirty thousand, one hundred twenty-three".