30134221 has 12 divisors (see below), whose sum is σ = 33434100. Its totient is φ = 27131520.

The previous prime is 30134197. The next prime is 30134231. The reversal of 30134221 is 12243103.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 21068100 + 9066121 = 4590^2 + 3011^2 .

It is not a de Polignac number, because 30134221 - 2¹⁹ = 29609933 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 30134195 and 30134204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30134231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4755 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (2786175).

Almost surely, 2^30134221 is an apocalyptic number.

It is an amenable number.

30134221 is a deficient number, since it is larger than the sum of its proper divisors (3299879).

30134221 is a wasteful number, since it uses less digits than its factorization.

30134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416 (or 4403 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30134221 is about 5489.4645458369. The cubic root of 30134221 is about 311.1859566194.

Adding to 30134221 its reverse (12243103), we get a palindrome (42377324).

The spelling of 30134221 in words is "thirty million, one hundred thirty-four thousand, two hundred twenty-one".