11138756 has 6 divisors (see below), whose sum is σ = 19492830. Its totient is φ = 5569376.

The previous prime is 11138753. The next prime is 11138759. The reversal of 11138756 is 65783111.

It is an interprime number because it is at equal distance from previous prime (11138753) and next prime (11138759).

It can be written as a sum of positive squares in only one way, i.e., 7398400 + 3740356 = 2720^2 + 1934^2 .

It is not an unprimeable number, because it can be changed into a prime (11138753) 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 as a sum of consecutive naturals, namely, 1392341 + ... + 1392348.

It is an arithmetic number, because the mean of its divisors is an integer number (3248805).

Almost surely, 2^11138756 is an apocalyptic number.

It is an amenable number.

11138756 is a deficient number, since it is larger than the sum of its proper divisors (8354074).

11138756 is a wasteful number, since it uses less digits than its factorization.

11138756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784693 (or 2784691 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 11138756 is about 3337.4774905608. The cubic root of 11138756 is about 223.3292274189.

The spelling of 11138756 in words is "eleven million, one hundred thirty-eight thousand, seven hundred fifty-six".