11156941 has 2 divisors, whose sum is σ = 11156942. Its totient is φ = 11156940.

The previous prime is 11156939. The next prime is 11156953. The reversal of 11156941 is 14965111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10562500 + 594441 = 3250^2 + 771^2 .

It is a cyclic number.

It is not a de Polignac number, because 11156941 - 2¹ = 11156939 is a prime.

Together with 11156939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11156441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578470 + 5578471.

It is an arithmetic number, because the mean of its divisors is an integer number (5578471).

Almost surely, 2^11156941 is an apocalyptic number.

It is an amenable number.

11156941 is a deficient number, since it is larger than the sum of its proper divisors (1).

11156941 is an equidigital number, since it uses as much as digits as its factorization.

11156941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 28.

The square root of 11156941 is about 3340.2007424704. The cubic root of 11156941 is about 223.4506962164.

The spelling of 11156941 in words is "eleven million, one hundred fifty-six thousand, nine hundred forty-one".