1180121 has 2 divisors, whose sum is σ = 1180122. Its totient is φ = 1180120.

The previous prime is 1180117. The next prime is 1180133. The reversal of 1180121 is 1210811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 990025 + 190096 = 995^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1180121 - 2² = 1180117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1180096 and 1180105.

It is not a weakly prime, because it can be changed into another prime (1180111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590060 + 590061.

It is an arithmetic number, because the mean of its divisors is an integer number (590061).

2^1180121 is an apocalyptic number.

It is an amenable number.

1180121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180121 is an equidigital number, since it uses as much as digits as its factorization.

1180121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1180121 is about 1086.3337424567. Note that the first 3 decimals coincide. The cubic root of 1180121 is about 105.6757923611.

Adding to 1180121 its reverse (1210811), we get a palindrome (2390932).

The spelling of 1180121 in words is "one million, one hundred eighty thousand, one hundred twenty-one".