11557841 has 16 divisors (see below), whose sum is σ = 12729024. Its totient is φ = 10450944.

The previous prime is 11557837. The next prime is 11557873. The reversal of 11557841 is 14875511.

11557841 = 233² + 234² + ... + 361².

11557841 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11557841 - 2² = 11557837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11557798 and 11557807.

It is not an unprimeable number, because it can be changed into a prime (11557541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70826 + ... + 70988.

It is an arithmetic number, because the mean of its divisors is an integer number (795564).

Almost surely, 2^11557841 is an apocalyptic number.

It is an amenable number.

11557841 is a deficient number, since it is larger than the sum of its proper divisors (1171183).

11557841 is a wasteful number, since it uses less digits than its factorization.

11557841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its digits is 5600, while the sum is 32.

The square root of 11557841 is about 3399.6824851742. The cubic root of 11557841 is about 226.0956665492.

The spelling of 11557841 in words is "eleven million, five hundred fifty-seven thousand, eight hundred forty-one".