1381325 has 12 divisors (see below), whose sum is σ = 1868928. Its totient is φ = 1004400.

The previous prime is 1381313. The next prime is 1381327. The reversal of 1381325 is 5231831.

It is not a de Polignac number, because 1381325 - 2⁸ = 1381069 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 1381325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381327) 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 11 ways as a sum of consecutive naturals, for example, 2237 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (155744).

2^1381325 is an apocalyptic number.

It is an amenable number.

1381325 is a deficient number, since it is larger than the sum of its proper divisors (487603).

1381325 is a wasteful number, since it uses less digits than its factorization.

1381325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044 (or 5039 counting only the distinct ones).

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

The square root of 1381325 is about 1175.2978345934. The cubic root of 1381325 is about 111.3692488936.

The spelling of 1381325 in words is "one million, three hundred eighty-one thousand, three hundred twenty-five".