11241561 has 8 divisors (see below), whose sum is σ = 15472384. Its totient is φ = 7252560.

The previous prime is 11241557. The next prime is 11241563. The reversal of 11241561 is 16514211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11241561 - 2² = 11241557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11241563) 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, 60346 + ... + 60531.

It is an arithmetic number, because the mean of its divisors is an integer number (1934048).

Almost surely, 2^11241561 is an apocalyptic number.

It is an amenable number.

11241561 is a deficient number, since it is larger than the sum of its proper divisors (4230823).

11241561 is a wasteful number, since it uses less digits than its factorization.

11241561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120911.

The product of its digits is 240, while the sum is 21.

The square root of 11241561 is about 3352.8437183979. The cubic root of 11241561 is about 224.0141957946.

Adding to 11241561 its reverse (16514211), we get a palindrome (27755772).

The spelling of 11241561 in words is "eleven million, two hundred forty-one thousand, five hundred sixty-one".