11123739 has 12 divisors (see below), whose sum is σ = 17528472. Its totient is φ = 6741600.

The previous prime is 11123719. The next prime is 11123767. The reversal of 11123739 is 93732111.

It is a de Polignac number, because none of the positive numbers 2^k-11123739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11123719) 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 in 11 ways as a sum of consecutive naturals, for example, 56082 + ... + 56279.

It is an arithmetic number, because the mean of its divisors is an integer number (1460706).

Almost surely, 2^11123739 is an apocalyptic number.

11123739 is a deficient number, since it is larger than the sum of its proper divisors (6404733).

11123739 is a wasteful number, since it uses less digits than its factorization.

11123739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112378 (or 112375 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 11123739 is about 3335.2269787827. The cubic root of 11123739 is about 223.2288199383.

It can be divided in two parts, 1112 and 3739, that added together give a triangular number (4851 = T₉₈).

The spelling of 11123739 in words is "eleven million, one hundred twenty-three thousand, seven hundred thirty-nine".