1161241 has 2 divisors, whose sum is σ = 1161242. Its totient is φ = 1161240.

The previous prime is 1161239. The next prime is 1161263. The reversal of 1161241 is 1421611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 102400 = 1029^2 + 320^2 .

It is an emirp because it is prime and its reverse (1421611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161241 - 2¹ = 1161239 is a prime.

Together with 1161239, it forms a pair of twin primes.

1161241 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1161841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580620 + 580621.

It is an arithmetic number, because the mean of its divisors is an integer number (580621).

2^1161241 is an apocalyptic number.

It is an amenable number.

1161241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161241 is an equidigital number, since it uses as much as digits as its factorization.

1161241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 16.

The square root of 1161241 is about 1077.6089272088. The cubic root of 1161241 is about 105.1092136507.

Adding to 1161241 its reverse (1421611), we get a palindrome (2582852).

The spelling of 1161241 in words is "one million, one hundred sixty-one thousand, two hundred forty-one".