11114561 has 2 divisors, whose sum is σ = 11114562. Its totient is φ = 11114560.

The previous prime is 11114557. The next prime is 11114573. The reversal of 11114561 is 16541111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7054336 + 4060225 = 2656^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 11114561 - 2² = 11114557 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (11114591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557280 + 5557281.

It is an arithmetic number, because the mean of its divisors is an integer number (5557281).

Almost surely, 2^11114561 is an apocalyptic number.

It is an amenable number.

11114561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11114561 is an equidigital number, since it uses as much as digits as its factorization.

11114561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120, while the sum is 20.

The square root of 11114561 is about 3333.8507765046. The cubic root of 11114561 is about 223.1674089972.

Adding to 11114561 its reverse (16541111), we get a palindrome (27655672).

The spelling of 11114561 in words is "eleven million, one hundred fourteen thousand, five hundred sixty-one".