11389205 has 4 divisors (see below), whose sum is σ = 13667052. Its totient is φ = 9111360.

The previous prime is 11389153. The next prime is 11389207. The reversal of 11389205 is 50298311.

11389205 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50298311 = 7 ⋅7185473.

It can be written as a sum of positive squares in 2 ways, for example, as 3865156 + 7524049 = 1966^2 + 2743^2 .

It is not a de Polignac number, because 11389205 - 2¹⁴ = 11372821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389207) 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, 1138916 + ... + 1138925.

It is an arithmetic number, because the mean of its divisors is an integer number (3416763).

Almost surely, 2^11389205 is an apocalyptic number.

It is an amenable number.

11389205 is a deficient number, since it is larger than the sum of its proper divisors (2277847).

11389205 is an equidigital number, since it uses as much as digits as its factorization.

11389205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277846.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 11389205 is about 3374.7896230728. The cubic root of 11389205 is about 224.9906498172.

The spelling of 11389205 in words is "eleven million, three hundred eighty-nine thousand, two hundred five".