731325 has 36 divisors (see below), whose sum is σ = 1413600. Its totient is φ = 332640.

The previous prime is 731299. The next prime is 731327. The reversal of 731325 is 523137.

731325 = 193² + 194² + ... + 210².

It is a happy number.

It is not a de Polignac number, because 731325 - 2⁶ = 731261 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 731325.

It is not an unprimeable number, because it can be changed into a prime (731327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3576 + ... + 3774.

2⁷³¹³²⁵ is an apocalyptic number.

731325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

731325 is a deficient number, since it is larger than the sum of its proper divisors (682275).

731325 is a wasteful number, since it uses less digits than its factorization.

731325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 214 counting only the distinct ones).

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

The square root of 731325 is about 855.1754206009. The cubic root of 731325 is about 90.0955774758.

It can be divided in two parts, 73132 and 5, that added together give a palindrome (73137).

The spelling of 731325 in words is "seven hundred thirty-one thousand, three hundred twenty-five".