30886133 has 2 divisors, whose sum is σ = 30886134. Its totient is φ = 30886132.

The previous prime is 30886111. The next prime is 30886147. The reversal of 30886133 is 33168803.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 669124 = 5497^2 + 818^2 .

It is an emirp because it is prime and its reverse (33168803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30886133 - 2¹⁰ = 30885109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30886133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30886183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15443066 + 15443067.

It is an arithmetic number, because the mean of its divisors is an integer number (15443067).

Almost surely, 2^30886133 is an apocalyptic number.

It is an amenable number.

30886133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30886133 is an equidigital number, since it uses as much as digits as its factorization.

30886133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30886133 is about 5557.5293971332. The cubic root of 30886133 is about 313.7529701364.

The spelling of 30886133 in words is "thirty million, eight hundred eighty-six thousand, one hundred thirty-three".