1382081 has 8 divisors (see below), whose sum is σ = 1428840. Its totient is φ = 1336192.

The previous prime is 1382057. The next prime is 1382089. The reversal of 1382081 is 1802831.

It can be written as a sum of positive squares in 4 ways, for example, as 462400 + 919681 = 680^2 + 959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1382081 - 2¹⁰ = 1381057 is a prime.

It is a super-2 number, since 2×1382081² = 3820295781122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1382089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4571 + ... + 4863.

It is an arithmetic number, because the mean of its divisors is an integer number (178605).

2^1382081 is an apocalyptic number.

It is an amenable number.

1382081 is a deficient number, since it is larger than the sum of its proper divisors (46759).

1382081 is an equidigital number, since it uses as much as digits as its factorization.

1382081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1382081 is about 1175.6194112042. The cubic root of 1382081 is about 111.3895626737.

The spelling of 1382081 in words is "one million, three hundred eighty-two thousand, eighty-one".