123075 has 18 divisors (see below), whose sum is σ = 220844. Its totient is φ = 65520.

The previous prime is 123059. The next prime is 123077. The reversal of 123075 is 570321.

It is not a de Polignac number, because 123075 - 2⁴ = 123059 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (123077) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49 + ... + 498.

2¹²³⁰⁷⁵ is an apocalyptic number.

123075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123075 is a deficient number, since it is larger than the sum of its proper divisors (97769).

123075 is a wasteful number, since it uses less digits than its factorization.

123075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 123075 is about 350.8204669058. The cubic root of 123075 is about 49.7420043883.

Adding to 123075 its reverse (570321), we get a palindrome (693396).

The spelling of 123075 in words is "one hundred twenty-three thousand, seventy-five".