11400239 has 2 divisors, whose sum is σ = 11400240. Its totient is φ = 11400238.

The previous prime is 11400223. The next prime is 11400283. The reversal of 11400239 is 93200411.

It is a weak prime.

It is an emirp because it is prime and its reverse (93200411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11400239 - 2⁴ = 11400223 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11400239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11400439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700119 + 5700120.

It is an arithmetic number, because the mean of its divisors is an integer number (5700120).

Almost surely, 2^11400239 is an apocalyptic number.

11400239 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400239 is an equidigital number, since it uses as much as digits as its factorization.

11400239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11400239 is about 3376.4239958868. The cubic root of 11400239 is about 225.0632842564.

The spelling of 11400239 in words is "eleven million, four hundred thousand, two hundred thirty-nine".