1731225 has 24 divisors (see below), whose sum is σ = 2937312. Its totient is φ = 899200.

The previous prime is 1731221. The next prime is 1731227. The reversal of 1731225 is 5221371.

It is not a de Polignac number, because 1731225 - 2² = 1731221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1731221) 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 23 ways as a sum of consecutive naturals, for example, 2794 + ... + 3356.

It is an arithmetic number, because the mean of its divisors is an integer number (122388).

2^1731225 is an apocalyptic number.

1731225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1731225 is a deficient number, since it is larger than the sum of its proper divisors (1206087).

1731225 is a wasteful number, since it uses less digits than its factorization.

1731225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 612 counting only the distinct ones).

The product of its digits is 420, while the sum is 21.

The square root of 1731225 is about 1315.7602365173. The cubic root of 1731225 is about 120.0746063839.

Adding to 1731225 its reverse (5221371), we get a palindrome (6952596).

The spelling of 1731225 in words is "one million, seven hundred thirty-one thousand, two hundred twenty-five".