1383725 has 12 divisors (see below), whose sum is σ = 1961184. Its totient is φ = 948720.

The previous prime is 1383691. The next prime is 1383731. The reversal of 1383725 is 5273831.

It is not a de Polignac number, because 1383725 - 2¹² = 1379629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3779 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (163432).

2^1383725 is an apocalyptic number.

It is an amenable number.

1383725 is a deficient number, since it is larger than the sum of its proper divisors (577459).

1383725 is an equidigital number, since it uses as much as digits as its factorization.

1383725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7924 (or 7919 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 1383725 is about 1176.3184092753. The cubic root of 1383725 is about 111.4337115283.

It can be divided in two parts, 13 and 83725, that added together give a palindrome (83738).

The spelling of 1383725 in words is "one million, three hundred eighty-three thousand, seven hundred twenty-five".