723125 has 20 divisors (see below), whose sum is σ = 984060. Its totient is φ = 528000.

The previous prime is 723119. The next prime is 723127. The reversal of 723125 is 521327.

It can be written as a sum of positive squares in 10 ways, for example, as 708964 + 14161 = 842^2 + 119^2 .

It is not a de Polignac number, because 723125 - 2⁴ = 723109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 723097 and 723106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8081 + ... + 8169.

It is an arithmetic number, because the mean of its divisors is an integer number (49203).

2⁷²³¹²⁵ is an apocalyptic number.

It is an amenable number.

723125 is a deficient number, since it is larger than the sum of its proper divisors (260935).

723125 is an equidigital number, since it uses as much as digits as its factorization.

723125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 107 counting only the distinct ones).

The product of its digits is 420, while the sum is 20.

The square root of 723125 is about 850.3675675847. The cubic root of 723125 is about 89.7575780568.

It can be divided in two parts, 723 and 125, that added together give a palindrome (848).

The spelling of 723125 in words is "seven hundred twenty-three thousand, one hundred twenty-five".