123925 has 6 divisors (see below), whose sum is σ = 153698. Its totient is φ = 99120.

The previous prime is 123923. The next prime is 123931. The reversal of 123925 is 529321.

It can be written as a sum of positive squares in 3 ways, for example, as 22801 + 101124 = 151^2 + 318^2 .

It is not a de Polignac number, because 123925 - 2¹ = 123923 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123896 and 123905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2454 + ... + 2503.

2¹²³⁹²⁵ is an apocalyptic number.

It is an amenable number.

123925 is a deficient number, since it is larger than the sum of its proper divisors (29773).

123925 is an equidigital number, since it uses as much as digits as its factorization.

123925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4967 (or 4962 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 123925 is about 352.0298282816. The cubic root of 123925 is about 49.8562538033.

The spelling of 123925 in words is "one hundred twenty-three thousand, nine hundred twenty-five".