1383125 has 10 divisors (see below), whose sum is σ = 1729134. Its totient is φ = 1106000.

The previous prime is 1383121. The next prime is 1383139. The reversal of 1383125 is 5213831.

1383125 = 678² + 679² + 680².

It can be written as a sum of positive squares in 5 ways, for example, as 142129 + 1240996 = 377^2 + 1114^2 .

It is not a de Polignac number, because 1383125 - 2² = 1383121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1383125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383121) 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 9 ways as a sum of consecutive naturals, for example, 482 + ... + 1731.

2^1383125 is an apocalyptic number.

It is an amenable number.

1383125 is a deficient number, since it is larger than the sum of its proper divisors (346009).

1383125 is an frugal number, since it uses more digits than its factorization.

1383125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233 (or 2218 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 1383125 is about 1176.0633486339. The cubic root of 1383125 is about 111.4176028620.

Adding to 1383125 its reverse (5213831), we get a palindrome (6596956).

It can be divided in two parts, 13 and 83125, that added together give a palindrome (83138).

The spelling of 1383125 in words is "one million, three hundred eighty-three thousand, one hundred twenty-five".