11621133 has 12 divisors (see below), whose sum is σ = 16815708. Its totient is φ = 7733760.

The previous prime is 11621131. The next prime is 11621143. The reversal of 11621133 is 33112611.

11621133 is a `hidden beast` number, since 11 + 621 + 1 + 33 = 666.

11621133 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5774409 + 5846724 = 2403^2 + 2418^2 .

It is not a de Polignac number, because 11621133 - 2¹ = 11621131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8941 + ... + 10157.

It is an arithmetic number, because the mean of its divisors is an integer number (1401309).

Almost surely, 2^11621133 is an apocalyptic number.

It is an amenable number.

11621133 is a deficient number, since it is larger than the sum of its proper divisors (5194575).

11621133 is a wasteful number, since it uses less digits than its factorization.

11621133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284 (or 2281 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 11621133 is about 3408.9782926854. The cubic root of 11621133 is about 226.5076236780.

Adding to 11621133 its reverse (33112611), we get a palindrome (44733744).

The spelling of 11621133 in words is "eleven million, six hundred twenty-one thousand, one hundred thirty-three".