1180081 has 8 divisors (see below), whose sum is σ = 1355904. Its totient is φ = 1006080.

The previous prime is 1180073. The next prime is 1180087. The reversal of 1180081 is 1800811.

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 1180081 - 2³ = 1180073 is a prime.

It is a super-2 number, since 2×1180081² = 2785182333122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1521 + ... + 2161.

It is an arithmetic number, because the mean of its divisors is an integer number (169488).

2^1180081 is an apocalyptic number.

It is an amenable number.

1180081 is a deficient number, since it is larger than the sum of its proper divisors (175823).

1180081 is an equidigital number, since it uses as much as digits as its factorization.

1180081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 1180081 is about 1086.3153317522. The cubic root of 1180081 is about 105.6745983933.

Adding to 1180081 its reverse (1800811), we get a palindrome (2980892).

It can be divided in two parts, 11800 and 81, that added together give a square (11881 = 109²).

The spelling of 1180081 in words is "one million, one hundred eighty thousand, eighty-one".