11453561 has 8 divisors (see below), whose sum is σ = 13778880. Its totient is φ = 9300528.

The previous prime is 11453549. The next prime is 11453573. The reversal of 11453561 is 16535411.

It is an interprime number because it is at equal distance from previous prime (11453549) and next prime (11453573).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11453561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11453561.

It is not an unprimeable number, because it can be changed into a prime (11453531) 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, 42926 + ... + 43191.

It is an arithmetic number, because the mean of its divisors is an integer number (1722360).

Almost surely, 2^11453561 is an apocalyptic number.

It is an amenable number.

11453561 is a deficient number, since it is larger than the sum of its proper divisors (2325319).

11453561 is an equidigital number, since it uses as much as digits as its factorization.

11453561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86143.

The product of its digits is 1800, while the sum is 26.

The square root of 11453561 is about 3384.3110081670. The cubic root of 11453561 is about 225.4136325413.

Adding to 11453561 its reverse (16535411), we get a palindrome (27988972).

The spelling of 11453561 in words is "eleven million, four hundred fifty-three thousand, five hundred sixty-one".