11609213 has 8 divisors (see below), whose sum is σ = 14473920. Its totient is φ = 9046080.

The previous prime is 11609203. The next prime is 11609303. The reversal of 11609213 is 31290611.

It is a happy number.

11609213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11609213 - 2⁸ = 11608957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11609203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75308 + ... + 75461.

It is an arithmetic number, because the mean of its divisors is an integer number (1809240).

Almost surely, 2^11609213 is an apocalyptic number.

It is an amenable number.

11609213 is a deficient number, since it is larger than the sum of its proper divisors (2864707).

11609213 is a wasteful number, since it uses less digits than its factorization.

11609213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150787.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 11609213 is about 3407.2295197125. The cubic root of 11609213 is about 226.4301529031.

Adding to 11609213 its reverse (31290611), we get a palindrome (42899824).

The spelling of 11609213 in words is "eleven million, six hundred nine thousand, two hundred thirteen".