11011157 has 2 divisors, whose sum is σ = 11011158. Its totient is φ = 11011156.

The previous prime is 11011153. The next prime is 11011159. The reversal of 11011157 is 75111011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10982596 + 28561 = 3314^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011157 - 2² = 11011153 is a prime.

Together with 11011159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505578 + 5505579.

It is an arithmetic number, because the mean of its divisors is an integer number (5505579).

Almost surely, 2^11011157 is an apocalyptic number.

It is an amenable number.

11011157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011157 is an equidigital number, since it uses as much as digits as its factorization.

11011157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35, while the sum is 17.

The square root of 11011157 is about 3318.3063451104. The cubic root of 11011157 is about 222.4731743950.

Adding to 11011157 its reverse (75111011), we get a palindrome (86122168).

The spelling of 11011157 in words is "eleven million, eleven thousand, one hundred fifty-seven".