11214561 has 8 divisors (see below), whose sum is σ = 15468480.
Its totient is φ = 7218512.
The previous prime is 11214559. The next prime is 11214571. The reversal of 11214561 is 16541211.
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 11214561 - 21 = 11214559 is a prime.
It is not an unprimeable number, because it can be changed into a prime (11214571) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64365 + ... + 64538.
It is an arithmetic number, because the mean of its divisors is an integer number (1933560).
Almost surely, 211214561 is an apocalyptic number.
It is an amenable number.
11214561 is a deficient number, since it is larger than the sum of its proper divisors (4253919).
11214561 is a wasteful number, since it uses less digits than its factorization.
11214561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 128935.
The product of its digits is 240, while the sum is 21.
The square root of 11214561 is about 3348.8148649933.
The cubic root of 11214561 is about 223.8347061284.
Adding to 11214561 its reverse (16541211), we get a palindrome (27755772).
The spelling of 11214561 in words is "eleven million, two hundred fourteen thousand, five hundred sixty-one".