11557741 has 6 divisors (see below), whose sum is σ = 12515370. Its totient is φ = 10668528.

The previous prime is 11557717. The next prime is 11557751. The reversal of 11557741 is 14775511.

It is a happy number.

11557741 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 335241 + 11222500 = 579^2 + 3350^2 .

It is not a de Polignac number, because 11557741 - 2¹¹ = 11555693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11557751) 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 5 ways as a sum of consecutive naturals, for example, 34026 + ... + 34363.

It is an arithmetic number, because the mean of its divisors is an integer number (2085895).

Almost surely, 2^11557741 is an apocalyptic number.

It is an amenable number.

11557741 is a deficient number, since it is larger than the sum of its proper divisors (957629).

11557741 is an equidigital number, since it uses as much as digits as its factorization.

11557741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68415 (or 68402 counting only the distinct ones).

The product of its digits is 4900, while the sum is 31.

The square root of 11557741 is about 3399.6677778865. The cubic root of 11557741 is about 226.0950144773.

The spelling of 11557741 in words is "eleven million, five hundred fifty-seven thousand, seven hundred forty-one".