11424139 has 4 divisors (see below), whose sum is σ = 11456856. Its totient is φ = 11391424.

The previous prime is 11424137. The next prime is 11424209. The reversal of 11424139 is 93142411.

It is a happy number.

11424139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11424139 - 2¹ = 11424137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11424131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15829 + ... + 16534.

It is an arithmetic number, because the mean of its divisors is an integer number (2864214).

Almost surely, 2^11424139 is an apocalyptic number.

11424139 is a deficient number, since it is larger than the sum of its proper divisors (32717).

11424139 is an equidigital number, since it uses as much as digits as its factorization.

11424139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32716.

The product of its digits is 864, while the sum is 25.

The square root of 11424139 is about 3379.9613903120. The cubic root of 11424139 is about 225.2204522458.

The spelling of 11424139 in words is "eleven million, four hundred twenty-four thousand, one hundred thirty-nine".