123503125 has 12 divisors (see below), whose sum is σ = 154372932. Its totient is φ = 98800000.

The previous prime is 123503119. The next prime is 123503129. The reversal of 123503125 is 521305321.

It can be written as a sum of positive squares in 6 ways, for example, as 122899396 + 603729 = 11086^2 + 777^2 .

It is not a de Polignac number, because 123503125 - 2³ = 123503117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123503096 and 123503105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123503129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16636 + ... + 22885.

It is an arithmetic number, because the mean of its divisors is an integer number (12864411).

Almost surely, 2^123503125 is an apocalyptic number.

It is an amenable number.

123503125 is a deficient number, since it is larger than the sum of its proper divisors (30869807).

123503125 is an frugal number, since it uses more digits than its factorization.

123503125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39546 (or 39526 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 123503125 is about 11113.1959849541. The cubic root of 123503125 is about 497.9961465377.

Adding to 123503125 its reverse (521305321), we get a palindrome (644808446).

The spelling of 123503125 in words is "one hundred twenty-three million, five hundred three thousand, one hundred twenty-five".