11129956 has 6 divisors (see below), whose sum is σ = 19477430. Its totient is φ = 5564976.

The previous prime is 11129941. The next prime is 11129957. The reversal of 11129956 is 65992111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 14400 = 3334^2 + 120^2 .

It is not an unprimeable number, because it can be changed into a prime (11129957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391241 + ... + 1391248.

Almost surely, 2^11129956 is an apocalyptic number.

It is an amenable number.

11129956 is a deficient number, since it is larger than the sum of its proper divisors (8347474).

11129956 is a wasteful number, since it uses less digits than its factorization.

11129956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782493 (or 2782491 counting only the distinct ones).

The product of its digits is 4860, while the sum is 34.

The square root of 11129956 is about 3336.1588691188. The cubic root of 11129956 is about 223.2703993361.

The spelling of 11129956 in words is "eleven million, one hundred twenty-nine thousand, nine hundred fifty-six".