11640133 has 4 divisors (see below), whose sum is σ = 11753248. Its totient is φ = 11527020.

The previous prime is 11640131. The next prime is 11640151. The reversal of 11640133 is 33104611.

11640133 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33104611 = 1181 ⋅28031.

It is a cyclic number.

It is not a de Polignac number, because 11640133 - 2¹ = 11640131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11640133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11640131) 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, 56403 + ... + 56608.

It is an arithmetic number, because the mean of its divisors is an integer number (2938312).

Almost surely, 2^11640133 is an apocalyptic number.

It is an amenable number.

11640133 is a deficient number, since it is larger than the sum of its proper divisors (113115).

11640133 is a wasteful number, since it uses less digits than its factorization.

11640133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113114.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 11640133 is about 3411.7639132859. The cubic root of 11640133 is about 226.6309995301.

Adding to 11640133 its reverse (33104611), we get a palindrome (44744744).

The spelling of 11640133 in words is "eleven million, six hundred forty thousand, one hundred thirty-three".