11161057 has 2 divisors, whose sum is σ = 11161058. Its totient is φ = 11161056.

The previous prime is 11161021. The next prime is 11161081. The reversal of 11161057 is 75016111.

11161057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7177041 + 3984016 = 2679^2 + 1996^2 .

It is an emirp because it is prime and its reverse (75016111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11161057 - 2¹¹ = 11159009 is a prime.

It is not a weakly prime, because it can be changed into another prime (11161097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580528 + 5580529.

It is an arithmetic number, because the mean of its divisors is an integer number (5580529).

Almost surely, 2^11161057 is an apocalyptic number.

It is an amenable number.

11161057 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161057 is an equidigital number, since it uses as much as digits as its factorization.

11161057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 11161057 is about 3340.8168162891. The cubic root of 11161057 is about 223.4781711903.

Adding to 11161057 its reverse (75016111), we get a palindrome (86177168).

The spelling of 11161057 in words is "eleven million, one hundred sixty-one thousand, fifty-seven".