11129139 has 24 divisors (see below), whose sum is σ = 18473312. Its totient is φ = 6324480.

The previous prime is 11129123. The next prime is 11129141. The reversal of 11129139 is 93192111.

11129139 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11129139 - 2⁴ = 11129123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11129149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14817 + ... + 15549.

Almost surely, 2^11129139 is an apocalyptic number.

11129139 is a deficient number, since it is larger than the sum of its proper divisors (7344173).

11129139 is a wasteful number, since it uses less digits than its factorization.

11129139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 984 counting only the distinct ones).

The product of its digits is 486, while the sum is 27.

The square root of 11129139 is about 3336.0364206645. The cubic root of 11129139 is about 223.2649361106.

The spelling of 11129139 in words is "eleven million, one hundred twenty-nine thousand, one hundred thirty-nine".