731225 has 12 divisors (see below), whose sum is σ = 989520. Its totient is φ = 531600.

The previous prime is 731219. The next prime is 731233. The reversal of 731225 is 522137.

It is not a de Polignac number, because 731225 - 2⁴ = 731209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 731197 and 731206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1055 + ... + 1604.

It is an arithmetic number, because the mean of its divisors is an integer number (82460).

2⁷³¹²²⁵ is an apocalyptic number.

It is an amenable number.

731225 is a deficient number, since it is larger than the sum of its proper divisors (258295).

731225 is a wasteful number, since it uses less digits than its factorization.

731225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680 (or 2675 counting only the distinct ones).

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

The square root of 731225 is about 855.1169510658. The cubic root of 731225 is about 90.0914707889.

It can be divided in two parts, 7312 and 25, that added together give a palindrome (7337).

The spelling of 731225 in words is "seven hundred thirty-one thousand, two hundred twenty-five".