1380081 has 12 divisors (see below), whose sum is σ = 1909232. Its totient is φ = 886704.

The previous prime is 1380053. The next prime is 1380083. The reversal of 1380081 is 1800831.

It is a happy number.

It is not a de Polignac number, because 1380081 - 2⁷ = 1379953 is a prime.

It is a super-2 number, since 2×1380081² = 3809247133122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380083) 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, 2250 + ... + 2796.

2^1380081 is an apocalyptic number.

It is an amenable number.

1380081 is a deficient number, since it is larger than the sum of its proper divisors (529151).

1380081 is an equidigital number, since it uses as much as digits as its factorization.

1380081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1380081 is about 1174.7684878307. The cubic root of 1380081 is about 111.3358063761.

The spelling of 1380081 in words is "one million, three hundred eighty thousand, eighty-one".