123375 has 32 divisors (see below), whose sum is σ = 239616. Its totient is φ = 55200.

The previous prime is 123373. The next prime is 123377. The reversal of 123375 is 573321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123373) and next prime (123377).

It is not a de Polignac number, because 123375 - 2¹ = 123373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2602 + ... + 2648.

It is an arithmetic number, because the mean of its divisors is an integer number (7488).

2¹²³³⁷⁵ is an apocalyptic number.

123375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123375 is a deficient number, since it is larger than the sum of its proper divisors (116241).

123375 is an equidigital number, since it uses as much as digits as its factorization.

123375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 62 counting only the distinct ones).

The product of its digits is 630, while the sum is 21.

The square root of 123375 is about 351.2477757937. The cubic root of 123375 is about 49.7823876042.

Adding to 123375 its reverse (573321), we get a palindrome (696696).

The spelling of 123375 in words is "one hundred twenty-three thousand, three hundred seventy-five".