30234521 has 2 divisors, whose sum is σ = 30234522. Its totient is φ = 30234520.

The previous prime is 30234497. The next prime is 30234557. The reversal of 30234521 is 12543203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24641296 + 5593225 = 4964^2 + 2365^2 .

It is a cyclic number.

It is not a de Polignac number, because 30234521 - 2¹⁴ = 30218137 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30234493 and 30234502.

It is not a weakly prime, because it can be changed into another prime (30234571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15117260 + 15117261.

It is an arithmetic number, because the mean of its divisors is an integer number (15117261).

Almost surely, 2^30234521 is an apocalyptic number.

It is an amenable number.

30234521 is a deficient number, since it is larger than the sum of its proper divisors (1).

30234521 is an equidigital number, since it uses as much as digits as its factorization.

30234521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30234521 is about 5498.5926381211. The cubic root of 30234521 is about 311.5308290518.

Adding to 30234521 its reverse (12543203), we get a palindrome (42777724).

The spelling of 30234521 in words is "thirty million, two hundred thirty-four thousand, five hundred twenty-one".