30514221 has 12 divisors (see below), whose sum is σ = 44513820. Its totient is φ = 20140800.

The previous prime is 30514217. The next prime is 30514229. The reversal of 30514221 is 12241503.

It can be written as a sum of positive squares in 2 ways, for example, as 16112196 + 14402025 = 4014^2 + 3795^2 .

It is not a de Polignac number, because 30514221 - 2² = 30514217 is a prime.

It is a super-2 number, since 2×30514221² = 1862235366473682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30514194 and 30514203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30514229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15876 + ... + 17693.

It is an arithmetic number, because the mean of its divisors is an integer number (3709485).

Almost surely, 2^30514221 is an apocalyptic number.

It is an amenable number.

30514221 is a deficient number, since it is larger than the sum of its proper divisors (13999599).

30514221 is a wasteful number, since it uses less digits than its factorization.

30514221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33676 (or 33673 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30514221 is about 5523.9678673939. The cubic root of 30514221 is about 312.4885405931.

Adding to 30514221 its reverse (12241503), we get a palindrome (42755724).

The spelling of 30514221 in words is "thirty million, five hundred fourteen thousand, two hundred twenty-one".