1382565 has 16 divisors (see below), whose sum is σ = 2249856. Its totient is φ = 724800.

The previous prime is 1382551. The next prime is 1382567. The reversal of 1382565 is 5652831.

It is not a de Polignac number, because 1382565 - 2⁵ = 1382533 is a prime.

It is a super-2 number, since 2×1382565² = 3822971958450, which contains 22 as substring.

It is an Ulam 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 (1382567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160 + ... + 1670.

It is an arithmetic number, because the mean of its divisors is an integer number (140616).

2^1382565 is an apocalyptic number.

1382565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1382565 is a deficient number, since it is larger than the sum of its proper divisors (867291).

1382565 is a wasteful number, since it uses less digits than its factorization.

1382565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580.

The product of its digits is 7200, while the sum is 30.

The square root of 1382565 is about 1175.8252421172. The cubic root of 1382565 is about 111.4025639031.

The spelling of 1382565 in words is "one million, three hundred eighty-two thousand, five hundred sixty-five".