1382765 has 4 divisors (see below), whose sum is σ = 1659324. Its totient is φ = 1106208.

The previous prime is 1382753. The next prime is 1382767. The reversal of 1382765 is 5672831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 574564 + 808201 = 758^2 + 899^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382765 - 2¹² = 1378669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382767) 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 3 ways as a sum of consecutive naturals, for example, 138272 + ... + 138281.

It is an arithmetic number, because the mean of its divisors is an integer number (414831).

2^1382765 is an apocalyptic number.

It is an amenable number.

1382765 is a deficient number, since it is larger than the sum of its proper divisors (276559).

1382765 is an equidigital number, since it uses as much as digits as its factorization.

1382765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276558.

The product of its digits is 10080, while the sum is 32.

The square root of 1382765 is about 1175.9102856936. The cubic root of 1382765 is about 111.4079354259.

The spelling of 1382765 in words is "one million, three hundred eighty-two thousand, seven hundred sixty-five".