11234561 has 8 divisors (see below), whose sum is σ = 12153960. Its totient is φ = 10323072.

The previous prime is 11234549. The next prime is 11234579. The reversal of 11234561 is 16543211.

It can be written as a sum of positive squares in 4 ways, for example, as 78961 + 11155600 = 281^2 + 3340^2 .

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 11234561 - 2⁶ = 11234497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11234581) 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 7 ways as a sum of consecutive naturals, for example, 1175 + ... + 4883.

It is an arithmetic number, because the mean of its divisors is an integer number (1519245).

Almost surely, 2^11234561 is an apocalyptic number.

It is an amenable number.

11234561 is a deficient number, since it is larger than the sum of its proper divisors (919399).

11234561 is a wasteful number, since it uses less digits than its factorization.

11234561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955.

The product of its digits is 720, while the sum is 23.

The square root of 11234561 is about 3351.7996658512. The cubic root of 11234561 is about 223.9676890576.

Adding to 11234561 its reverse (16543211), we get a palindrome (27777772).

The spelling of 11234561 in words is "eleven million, two hundred thirty-four thousand, five hundred sixty-one".