11434561 has 4 divisors (see below), whose sum is σ = 12036400. Its totient is φ = 10832724.

The previous prime is 11434543. The next prime is 11434589. The reversal of 11434561 is 16543411.

11434561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11434561 - 2⁵ = 11434529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11434541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300891 + ... + 300928.

It is an arithmetic number, because the mean of its divisors is an integer number (3009100).

Almost surely, 2^11434561 is an apocalyptic number.

It is an amenable number.

11434561 is a deficient number, since it is larger than the sum of its proper divisors (601839).

11434561 is an equidigital number, since it uses as much as digits as its factorization.

11434561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601838.

The product of its digits is 1440, while the sum is 25.

The square root of 11434561 is about 3381.5027724371. The cubic root of 11434561 is about 225.2889193788.

Adding to 11434561 its reverse (16543411), we get a palindrome (27977972).

The spelling of 11434561 in words is "eleven million, four hundred thirty-four thousand, five hundred sixty-one".