30071133 has 6 divisors (see below), whose sum is σ = 43436094. Its totient is φ = 20047416.

The previous prime is 30071131. The next prime is 30071161. The reversal of 30071133 is 33117003.

It can be written as a sum of positive squares in only one way, i.e., 19554084 + 10517049 = 4422^2 + 3243^2 .

It is not a de Polignac number, because 30071133 - 2¹ = 30071131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30071131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1670610 + ... + 1670627.

It is an arithmetic number, because the mean of its divisors is an integer number (7239349).

Almost surely, 2^30071133 is an apocalyptic number.

It is an amenable number.

30071133 is a deficient number, since it is larger than the sum of its proper divisors (13364961).

30071133 is a wasteful number, since it uses less digits than its factorization.

30071133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341243 (or 3341240 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 30071133 is about 5483.7152551897. The cubic root of 30071133 is about 310.9686420481.

Adding to 30071133 its reverse (33117003), we get a palindrome (63188136).

The spelling of 30071133 in words is "thirty million, seventy-one thousand, one hundred thirty-three".